Atmosphere, Air Pressure, and Wind Test #2 6th Grade

Here is an air-pressure-indicator system like the one you used in class. One student said, “Both the air particles and the water particles in the bottle get compressed when the jar is squeezed.” Do you agree or disagree? Explain why

• I disagree. Air particles can be compressed, but you can’t change the volume of liquid water (it can’t be compressed).

• The water particles in the bottle are unaffected by the jar being squeezed.
• Both air and water particles expand when the jar is squeezed.
• Only air particles get compressed, not water particles.

Tags

NGSS.MS-PS1-2

Here is an air-pressure-indicator system like the one you used in class. You are on top of a very high mountain. You set up the air-pressure indicator system as you did in the classroom. What do you expect will happen when you squeeze the jar? (Mark the one best answer.)

• ❍ A The water will go down the straw, but not as much.
• ❍ B The water will go down the straw even more.
• ❍ C The water will go up the straw.
• ❍ D The system will act exactly the same way as it did at a lower elevation.

Complete the sentence below to explain how air flows from one place to another. Air particles flow from areas of _____________________________________ to areas of _____________________________________ until ___________________________________ .

• high pressure, low pressure, equal pressure (equilibrium)

• low pressure, high pressure, equal pressure (equilibrium)

• low pressure, equal pressure (equilibrium),high pressure

• none of the above

. Two students went on vacation together and flew in an airplane from San Francisco to New York. When the students arrived in New York, they opened their luggage and found that the top of the shampoo had flipped open. There was shampoo all over the clothes in the suitcase. Student A said, “How is that possible? I was really careful before I packed that bottle to make sure the top was pushed down and snapped into place.” Which explanation best explains why the top flipped open during travel, allowing the shampoo to get out of the bottle? (Mark the one best answer.)

• ❍ A The air in the bottle compressed as the airplane gained altitude and that caused the top to pop open.
• ❍ B The shampoo expanded when air pressure decreased, and took up extra space so the top popped open.
• ❍ C The air pressure stayed the same inside the bottle but decreased outside, so the top popped.
• ❍ D The plastic bottle expanded with less air pressure, so the top no longer fit tightly and popped opened.

Examine the weather map. A, B, C, D, and E represent five different locations.Which two locations have the same air pressure?

• ❍ A A and B
• ❍ B B and C
• ❍ C C and D
• ❍ D D and E

Tags

NGSS.MS-ESS2-5

Examine the weather map. A, B, C, D, and E represent five different locations. Where would you likely feel the strongest wind?

• ❍ A Between locations B and C
• ❍ B Between locations A and B
• ❍ C Between locations D and E
• ❍ D Between locations C and D

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Examine the weather map. A, B, C, D, and E represent five different locations. If you were walking from D to C on the map, which of the following is true? (Mark the one best answer.)

• ❍ F You are walking uphill.
• ❍ G The air pressure is decreasing.
• ❍ H You are facing the wind as you walk.
• ❍ J The wind is getting stronger as you get closer to C.

Tags

NGSS.MS-ESS2-5

You launch a weather balloon. It travels high into the atmosphere. Below is the beginning of three models drawn by another student to explain what is happening as the balloon rises higher in the atmosphere. Complete the models by adding to the diagrams and writing a short explanation at each altitude (#1) (bottom picture)

• On the ground, there is a

  certain pressure inside and

  outside of the balloon. In my

  example there are 10 particles

  inside the balloon and 24

  particles outside the balloon.

• On the ground, the balloon is filled with helium, which makes it sink instead of rise.

• On the ground, the balloon remains the same size and temperature throughout its ascent.

• On the ground, the balloon contracts due to higher pressure and becomes heavier.

Tags

NGSS.MS-ESS2-5

You launch a weather balloon. It travels high into the atmosphere. Below is the beginning of three models drawn by another student to explain what is happening as the balloon rises higher in the atmosphere. Complete the models by adding to the diagrams and writing a short explanation at each altitude (#2) (middle picture)

• At altitude #2, the balloon is filled with helium, causing it to rise faster than normal.
• At altitude #2, the balloon remains the same size because the air pressure is constant.
• As the balloon gains altitude,

  there are fewer particles on the

  outside of the balloon, so there

  is less pressure and the air

  inside the balloon expands.

• At altitude #2, the balloon deflates due to increased air pressure and warmer temperatures.

Tags

NGSS.MS-PS1-4

You launch a weather balloon. It travels high into the atmosphere. Below is the beginning of three models drawn by another student to explain what is happening as the balloon rises higher in the atmosphere. Complete the models by adding to the diagrams and writing a short explanation at each altitude (#3) (top picture)

• At high altitudes, the balloon contracts due to increased atmospheric pressure.
• The balloon remains the same size regardless of altitude changes.
• At high altitudes, the balloon sinks back down due to lack of helium.
• At high altitudes, the balloon expands significantly. The outside air pressure is lower and so the balloon might pop.

Tags

NGSS.MS-PS1-4