Warm-Up: 1. Can you point northward? Can you point to the North Pole? 2. If a nebula begins to spin rapidly, what shape will it become? 3.What "fuel" does the sun use in nuclear fusion, and what does that fuel turn into after it fuses? 4. When air rises, does that cause cloudy skies or does it cause clear skies? 5. Does air pressure increase or decrease at higher altitudes? 6. There are 40 parent atoms. How many will remain after 2 half-lives? 7. What type of current is in the mantle beneath a divergent plate boundary, a rising current or a sinking current? 8. What type of radiation gets trapped by CO2 in our atmosphere, infrared radiation or visible radiation? Today's Agenda:
Homework: |
Warm-Up: 1. What is this moon phase? 2. How many weeks after this moon phase will the next spring tide occur? 3. Assuming that high tide occurs 4 hours after the moon is highest in the sky, when will high tide occur?
Today's Agenda:
Homework: Complete lost student scenario C. For help and explanations, watch these videos: Scenario C: #1-9. Scenario C: #10-15 |
Warm-Up: 1. What is this moon phase? 2. How many weeks after this moon phase will the next spring tide occur? 3. Assuming that high tide occurs 2 hours after the moon is highest in the sky, when will high tide occur?
Today's Agenda:
Homework: Complete lost student scenario C. For help and explanations, watch these videos: Scenario C: #1-9. Scenario C: #10-15 |
Warm-Up: 1. According to the data on the right (provided by the U.S. Navy) , at what time is solar noon in Essex? How can you tell? 2. On a full moon, high tide does not occur at midnight. Does it occur before midnight or after midnight? Why?
Today's Agenda:
Homework: None |
Warm-Up: The solar oven on the right is a glass-covered metal cylinder with two 20" x 26" racks that can remain horizontal when the oven is tilted. The reflective mylar-covered plywood panels should collect 36 ft2 of sunlight (compared to 3.44 ft2 last year). Both tilt and lateral angle can be adjusted. 1. How can we make sure that the solar oven is pointed directly at the sun? 2. What should we use to insulate the metal cylinder? 3. Do you have any other solar oven suggestions, concerns, questions, or ideas? Today's Agenda:
Homework: |
Warm-Up: 1) What do you think we should do about global warming? 2) The pictures on the right show last year's solar ovens. How could we scale up and improve the design? What features would be useful? Today's Agenda:
Homework:
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Warm-Up: The diagram above shows shadows cast by a stick protruding vertically from the ground, somewhere in the world. The times at which each shadow was cast were recorded from a watch that is set to solar noon in Essex, VT. 1. What is solar noon? 2. Which shadow represents solar noon? 3. At what longitude is the stick located? Today's Agenda:
Homework:
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Warm-Up: 1. Melting of snow is a change that results in positive feedback because it causes more light to be absorbed by the Earth, which results in higher temperatures that melt more snow. What would negative feedback look like? 2. If a meteorite 7 miles in diameter collided with Earth, what likely effect would it have on climate? 3. How long can you safely hold your breath in a resting situation? Today's Agenda:
Homework:
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C Warm-Up: Suppose you're conducting an experiment to find out which of two 2-liter bottle heats up more. You place a thermometer probe in each bottle, plug the probe into the computer, and you record. What is one important variable that needs to be controlled?
Today's Agenda:
Homework: |
Warm-Up: 1. Can you really burn paper with a magnifying glass? If you wanted to try to burn some paper, what type of paper would you use? 2. What is the purpose of the mirrors around car headlight bulbs?
Today's Agenda:
Homework: Quiz over remaining notes next Tuesday |
Warm-Up: What features of a solar oven help it to collect and store the sun's energy?
Today's Agenda:
Homework: |
Class 69 Thursday, 5/3/2018 Warm-Up: How could you test the hypothesis that humans are causing global warming? Link1 Today's Agenda:
Homework: Quiz next class over climate change notes through "how do greenhouse gases heat up the Earth?" |
Warm-Up: I am going to open this 2-liter bottle and turn it upside-down over the flame -- without pouring out any of the liquid. What do you think will happen? Today's Agenda:
Homework: Find and share an interesting video on the subject of climate change. Ideally, the video should be under 7 minutes long. The video could relate to the mechanisms of climate change, impacts of climate change, evidence that climate change is or is not caused by humans, solutions to climate change, the carbon cyclec, or feedback loops. Share the video using this form. If you want to submit a video that is longer than 7 minutes, you may do that, but you must also submit a video under 7 minutes. |
Class 67 Friday, 4/19/2018 Warm-Up: The best way to test the efficacy of medical treatments is to use a randomized double blind placebo controlled study (RDBPC study). What do these words mean, and why is this the best way to study medical treatments? Today's Agenda:
Homework: None (unless you have not finished your investigation and slideshow.) |
Warm-Up: Do you agree with Sherlock? Why or why not? Today's Agenda:
Homework:
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Warm-Up: 1. What is the chance of a ball making it all of the way to the left-most side of the quincunx? Why? 2. What is the chance of a ball making it to either the far left side or the far right side of the quincunx? Why? 3. What do these answers tell us about one-tailed and two-tailed tests? Today's Agenda:
Homework:
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Warm-Up: You may have noticed that T-Tests are meant to be used for data that are normally distributed. 1. What is a normal distribution? 2. What causes data to have a normal distribution? 3. What is a quincunx? How does one work? 4. What test can you use when you have no idea how the data are distributed? Today's Agenda: Inquiry -- Experimental Design
Homework:
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Class 63 Wednesday, 4/11/2018 Warm-Up: 1. What is science? 1 22. What makes this a science class? 3. Can there really such a things as political science and social science? Explain. Today's Agenda: Inquiry -- Experimental Design
Homework:
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Class 62 Tuesday, 4/10/2018 Warm-Up: Scientific investigations involve manipulated, responding, and controlled variables. 1. Describe the role each type of variable plays in an investigation.2. What are some other names for the manipulated variable and the responding variable? For each of the following investigative questions, identify the manipulated variable, responding variable and one important controlled variable. 3. Does shaving cause hairs to grow back thicker? 4. Do fisherman catch more fish when the moon is full? 5. Do cats react differently to people with beards? 6. Does listening to music during tests improve test scores? 7. Does eating sugar make kids hyper? Today's Agenda: Inquiry -- Experimental Design
Homework:
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Warm-Up: Someone offers you a wager that is decided by a coin toss. The terms of the bet are, she calls the toss while the coin is still in the air. If she calls correctly, you pay her a dollar. If she is incorrect, she pays you a dollar. Before the toss that counts, she gives you the coin so that you can examine it and satisfy yourself that it is a "fair coin." You do this by tossing the coin a number of times and counting heads and tails. 1. In scientific inquiry, what does it mean for something to be "statistically significant?" 2. What is the minimum number of tosses that would allow you to "show, scientifically" that the coin is unfair? 3. What, exactly, would the results of these tosses tell you? Today:
Homework:
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Class 60 Wednesday, 4/4/2018 Warm-Up: What causes hurricanes? Today:
Homework:
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Class 59 Monday, 4/2/2018 Warm-Up: No warm-up today. Today:
Homework:
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Warm-Up: The picture on the right shows the bottom of a hovercraft. How does it hover? Today:
Thursday:
Links: Resource page for this unit (Climate Mapping) -- project information, notes, videos, etc. Homework:
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Class 57
Tuesday,
3/26/2018
1. Compare the jet streams on the right to the prevailing winds (far right). What do you notice? 2. What are jet streams? How do they relate to the "polar vortex?" 3. How do jet streams affect our weather? 4. What causes jet streams? Today:
Thursday:
Links: Resource page for this unit (Climate Mapping) -- project information, notes, videos, etc. Homework:
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Warm-Up:
We will use the contraption on the right to simulate ocean currents. How do you think it works? Today:
Tuesday:
Thursday:
Links: Resource page for this unit (Climate Mapping) -- project information, notes, videos, etc. Homework:
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Warm-Up:
A
relative humidity of 100% means the air cannot
evaporate any more water; it is 100% full of water
vapor.
1) Which air can evaporate more water vapor, 90 degree air or 60 degree air? Why? 2) Which air contains more water when its relative humidity is 100%, 90 degree air or 60 degree air? 3) Suppose you have some air with a relative humidity of 70%. If you cool down the air, what will happen to its relative humidity? 4) What is the dewpoint? 5) When does dew form? Why? Today:
Homework:
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Warm-Up:
I have an empty fuel can, like the one on the right. My plan is to open the unscrew the cap, heat up the can on a hot plate, screw the cap back on the can, and remove the can from the hot plate. 1. What is going to happen? 2. Which is potentially more explosive, a fuel can that is full or a fuel can that is almost empty? Why? 3. If you were going to do this demo in front of a class, what would be a good precaution to take? 4. Estimate the gas pressure inside the can before heating, during heating, and the cap has been returned. Today:
Homework:
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Class 53 Monday, 3/12/2018
Warm-Up:
There are three misteaks in thi sentence. Can you find them? Today:
Homework:
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Warm-Up:
Today:
Homework:
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Warm-Up:
The Monsoon Effect is caused by the difference between the rates of heating and cooling of land and oceans. The property of matter that determines the rate of heating or cooling is specific heat 1. Does water change temperature faster or more slowly than land? Both pictures on the upper right show the same land and ocean. The perspectives are different. 2. Is there an onshore (toward shore) or offshore (away from shore) breeze? 3. Is there higher pressure over the continent or over the ocean? 4. Is this late summer or late winter? 5. Will this effect increase or decrease the precipitation on the land? 6. Where in the world is there a very strong Monsoon Effect? ![]()
Today:
Homework:
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Warm-Up:
The wind is blowing from left to right in the diagram on the right. 1. Why are there clouds on the left side of the mountain? 2. What do you think the wet and dry adiabatic rates are? 3. Why is the starting temperature cooler than the final temperature? Today:
Homework:
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Warm-Up: Why does salt melt ice? Today:
Homework:
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Warm-Up: 1. What months might the diagram on the right represent? 2. How would the Earth look different in June? 3. How would it look different in December? Today:
Homework:
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![]() Warm-Up: What will happen in the picture on the right? Today:
Homework:
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![]() ![]() Warm-Up: 1. Why does the bird keep drinking? 2. How should one prepare for a test? Today:
Homework:
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![]() Warm-Up: One way to classify rocks is by their method of formation. This gives three types: igneous, metamorphic, or sedimentary? 1. Which rock types are clearly shown in the diagram on the right? 2. Which of the three rock types can be used for radiometric dating? 3. What causes the radioactive clock to reset? In other words, what can cause the radiometric age of a rock to go back to zero? 4. Some rock is made from volcanic ash. Would that rock be igneous, sedimentary, or both? Could it be radiometrically dated? Today:
Homework: Prepare for test next Tuesday (2/13). Study Rock Dating Terminology. Memorize the definitions and answers. Try the practice tests, below.
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Class 44 Tuesday,
1/30/2018 Warm-Up: Logarithms... 1. Log28 = 3. Log216 = 4. Log416 = 2. Log5125 = ? 2. x0 = 1. x1 =0.5 x2 = 0.25. x3 = 0.125. x4 =0.0625. x = ? 3. Logx0.0625 = ? If your calculator is limited, you can use... Logyz = Log10z / Log10yToday:
Homework: Optional but strongly recommended -- complete test version 3 |
![]() Warm-Up:
A pond is 100 feet wide. Starting from one side of
the pond, a snail glides directly across, covering half of the
remaining distance each day. Today:
Homework: Complete Rock Dating Review at the end of the Rock Dating Handout video showing solutions |
Class 42 Wednesday,
1/24/2018 Warm-Up: from 3/8/99...
Today:
Homework: |
![]() Warm-Up: The diagram on the right illustrates the "Rock Cycle." In the rock cycle, there are three types of rocks: igneous, sedimentary, and metamorphic. Based on this diagram... 1. How is an igneous rock made? 2. How is a sedimentary rock made? 3. How is a metamorphic rock made? Today:
Homework:
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Class 40 Monday,
1/8/2018 Warm-Up: What is the object of these photos? Hint: It's related to a homework assignment that over half of you have not completed. ![]() ![]() Today:
Homework:
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![]() Warm-Up: 1. Why is the approaching weather system called a "Bomb Cyclone?" 2. What are some effects of rapidly dropping pressure? Today:
Homework:
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![]() Warm-Up: The stop motion animation video on the right was created by a student from Brown's River Middle School. How is stop motion animation done? Today:
Homework:
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![]() Warm-Up: The Northern Hemisphere winter solstice and the Southern Hemisphere summer solstice both occurred today at 11:28AM. 1. What is special about this solstice? 2. What can you deduce from the diagram on the right? Today:
Homework:
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![]() ![]() Warm-Up: Mafic magma is runnier than felsic magma. Felsic magma is stickier ![]() 1. Which type of magma is darker in color? 2. If you were given these two types of magma, and you were told to form them into volcanoes, which type of magma would be better for forming a steep volcano? 3. Suppose you were given a couple of volcanoes and some magma, and you were told to use the magma to plug up the volcanoes. Which magma would work best? 4. Suppose that, eventually, the pressure inside the volcanoes that you plugged up will cause an eruption. If you filled some volcanoes with mafic magma and some with felsic magma, which volcanoes will erupt more explosively? Today:
Homework:
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![]() ![]() Warm-Up:
Today:
Homework:
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Class 34 Wednesday,
12/13/2017 Warm-Up: ![]() 1. How many time zones are there on the Earth? 2. Where is the International Date Line? 3. What happens at the International Date Line? What is its purpose? Today:
Homework:
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![]() ![]() Warm-Up: 1. The moon rotates. In which direction does it rotate? How long does one rotation take? How can this be proven? 2 ![]() 3. The bottom diagram shows the Earth, as seen from the moon. What was the moon phase at the time that the photograph was taken? [There are two possibilities] Today:
Homework:
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![]() Warm-Up: 1. If you want to see the Big Dipper, where should you look? 2. In the picture on the right, where is the North Star? 3. Why can't we see the constellation Orion during the summer? 4. What's your astrological sign? When is it visible, according to the diagram on the bottom right? Today:
Homework:
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![]() ![]() Warm-Up: The Sun, Earth, and Moon are continually spaghettifying one another. We see the effects of this spaghettification in the form of tides. 1. What causes spaghettification?
3. Do we see different sides of the moon, or do we always see the same side? 4. Is the Earth's 24 hour rotational period speeding up or slowing down over time? Explain. Answer Today:
Homework: none
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Warm-Up: In the picture on the right, the opaque sphere blocks sunlight, causing a shadow to be cast on the number line.
1. Which positions on the number line are experiencing a partial eclipse? 2. Which positions are experiencing a total eclipse? 3. What is today's moon phase? Today:
Homework:
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![]() Warm-Up: 1. Whose flag is this? From an ESS perspective, what is wrong with it? 2. If you could jump through a hole in the Earth, where would you come out? (antipodes map) What time would it be in that location?
Today:
Homework:
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![]() Warm-Up: Why do clocks go clockwise? Today:
Homework:
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Class 27 Thursday,
11/15/2017 Warm-Up:
Today:
Homework: None |
![]() Warm-Up: These spectra on the right were produced by three different stars. One star was stationary, and the other two were moving. 1. Which star was moving away? 2. Which star was moving closer?
3. 4. How many axes of symmetry does a snowflake have? Why does it have this symmetry? Today:
Homework: Study for quiz next class over Notes: Stars and The Universe, Part 2 Answer Key |
![]() Warm-Up: If you're standing next to a race track, what do you hear as the cars pass you? a. Their pitch changes from high to low. b. Their pitch changes from low to high. c. There is no change in pitch; only volume changes. Today:
Homework: Study for quiz next class over Notes: Stars and The Universe, Part 1 Answer Key |
![]() Warm-Up: 1. What will happen if I hold a tennis ball on top of a basketball and drop them to the floor together? 2. What if I reverse their positions? 3. Why does this happen?
Today:
Homework: Finish the Practice Quiz |
![]() Warm-Up: What would happen if you were floating in outer space with no suit or spacecraft? Describe the effects of...
3. Radiation definition dangers cosmic rays (cr wikipedia) what are cosmic rays? apollo astronauts article sound 4. Solar wind wikipedia solar storms Today:
Homework: Review the notes. No quiz next class. |
![]() Warm-Up: What would happen if you were floating in outer space with no suit or spacecraft? Describe the effects of... 1. Air pressure (or lack thereof) 2. Temperature how cold is space?
Tomorrow we can consider... 3. Radiation cosmic rays what are cosmic rays? apollo astronauts article 4. Solar wind solar storms Today:
Homework:
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![]() Today:
Homework:
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Warm-Up: Why are the outer planets much larger than the inner planets? Today:
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![]() Warm-Up: In our Sun, hydrogen atoms are fused (squeezed together) to create helium atoms.
2. What is actually missing from the equation?
3. E = mc2 is a famous equation. What do each of the letters in the equation represent? Today:
Homework:
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Class 18 Monday,
10/23/2017 Warm-Up: None Today: Homework:
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![]() Warm-Up: Where are we in the Universe? If you were going to write a letter to someone in the most distant reaches of the universe, how would you write your return address? Today: Turn in projects. hot air balloon project submission form Homework:
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![]() Warm-Up: Examine the mercury barometer on the right. 1. Do you understand how it works? 2. If you were given some mercury, a long test tube, and a bowl, could you make one? [Unfortunately, Hg is toxic, so if you find a bunch, please don't actually try this.] 3. Why is the vacuum at the top important? What is a vacuum? 4. If this barometer were made using water instead of mercury, would the tube need to be longer or shorter? 5. How could this picture be useful during your test? ![]() Today: Turn in projects. hot air balloon project submission form Balloon project stuff
Homework:
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![]() ![]() Warm-Up: 1. How does one siphon a fluid? 2. How/why does siphoning work? 3. Would siphoning work on the moon? Why or why not? 4. How does a toilet work? Would a toilet work on the moon? Why or why not? Today:
Homework:
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![]() Warm-Up: The picture on the right shows the pipes leading into the urinal in the men's restroom across from the gym. The picture was taken during our last hot spell. As you can see in the picture, there was condensation on these pipes. 1. Why was there condensation? 2. How recently had the urinal been flushed? 3. Why does this happen most often during the spring? 4. Why did it happen (unusually) during our last hot spell? Today:
Upcoming Deadlines:
Homework:
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![]() ![]() Warm-Up: Note the new rows (circled in red) that have been added to the project data sheet. 1. Does the addition of these new rows make the calculation process harder or easier? 2. How do you find each of the bits of data on the right? Today:
Homework/Upcoming Deadlines:
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![]() Warm-Up: The picture on the right shows a typical syringe. We will be using a slightly different syringe to measure balloon volume. 1. Describe the steps you should take if the volume of the balloon is bigger than the volume of the syringe. 2. Explain why. 3. What does the Snipping Tool do, and what is the easiest way to use it? Today:
Homework/Upcoming Deadlines:
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![]() Warm-Up: Last night, a cold front moved through our area. The map on the right shows where the cold front was situated this morning. 1. What happens when cold air pushes into warmer air? Which body of air rises? 2. What happens to the pressure and volume of the rising air? 3. How does the change in pressure and volume affect the temperature of the air? 4. If there is water in the air, will this temperature change cause water in the air to evaporate or condense? 5. Does this cause clouds to form or to disappear? Today:
Homework:
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![]() Warm-Up: The hot air balloon on the right is tugging against a string that is attached to a 100g weight. The weight is sitting on a balance, and the balance reads 90g. 1. Is the balloon neutrally buoyant? 2. Why doesn't the balance read 100g? 3. If the string were untied from the 100g weight, the balloon would fly away. How much mass would need to be added to the balloon to make it neutrally buoyant? Today:
Homework:
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![]() Warm-Up: The diagram on the right shows a rock that is tied to a small, white, air-filled balloon. Explain why the whole thing sinks near the bottom but floats near the surface. Today:
Homework:
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![]() Warm-Up: 1. On Monday during A5/6, I may have said that the rising blobs in a lava lamp do not have greater buoyancy than the sinking blobs. If I did, was I correct? 2. What factors do you think determine the density of air at sea level? On what type of day should the air at sea level be most dense? 3. Determine the current density of the air in this room using this calculator and today's weather conditions. Today:
Homework:
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![]() Warm-Up: 1. Why do the blobs in a lava lamp rise and sink? 2. Why do they connect together at the bottom, but not at the top? 3. What is the formula for calculating density? Do you remember the mnemonic? Do you know what a mnemonic is? Today:
Homework:
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![]() Warm-Up: 1. How does a 4 stroke engine work? Why is it called a 4 stroke? 2. How is a diesel engine different? 3. How does a 2 stroke engine work? What are the advantages and disadvantages of 4 strokes vs 2 strokes? Today:
Homework:
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Class 5 Tuesday,
9/12/2017 Warm-Up: 1. Sometimes you can "see your breath." Why can't you see it right now? I know of a way to make my breath visible right now. Can you guess how I can do it?
2. Once you've seen the trick, can you explain how it works? 3. *What is in air? Today:
Homework:
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![]() ![]() Warm-Up: 1. An object floating in a glass of water tends to move to the side of the glass and stay there. Why? Can you think of a way to make the object stay in the middle without touching it? 2. Hurricanes
3. What caused the earthquake in Mexico this morning? Today:
Homework:
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![]() Warm-Up: Until recently, the Bathyscaphe Trieste (shown on the right) was the only manned vessel to have reached the deepest part of the ocean. Except for the spherical "pressure chamber" on the bottom of the Trieste, most of the vessel was filled with gasoline. The pointy "hoppers" on the bottom were filled with bits of iron that could be released by the pilots. The vessel had no motor. In 2012, James Cameron (moviemaker etc.) dove even deeper in a much smaller submarine, the Deepsea Challenger.
Today:
Handouts:
Homework:
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![]()
Warm-Up:
Suppose there is a freshwater iceberg floating in a freshwater lake. If no water is lost to evaporation, seepage, etc., what will happen to the surface level of the lake when the iceberg melts? Will it rise, sink, or stay the same. Why? Today:
Handouts:
Homework:
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![]()
Warm-Up:
This bottle on the right contains a "cartesian diver." The diver dives when the bottle is squeezed, and the diver rises when the bottle is released. 1. As the bottle is squeezed, what is happening to the diver's density, volume, and mass? 2. Why are those properties changing in those ways? Today:
Handouts:
Homework:
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![]()
Warm-Up:
1. Grab a copy of the course expectations. 2. Find your seat on the seating chart 3. Consider this question... which way is the North Pole? Can you point to it (or pretty close)? Today:
Homework: Share your course expectations handout with your parents. Have them sign and return it by Next Friday (9/9). |