Learning Set 3 Encore

How did the ammonia molecules get to the paper? Choose all that apply.

• Some of the ammonia molecules traveled up the side of the container.

• b. Some of the ammonia molecules move or travel through air.

• c. The ammonia molecules evaporated and went into the air.

• d. The ammonia molecules condensed and went into the air.

Use your model to explain to your friend how the ammonia in this activity behaved in the two conditions. Choose all that apply.

• a. The ammonia particles in the hot water bath reached the indicator paper faster than the molecules in the cold water bath.

• .b. The ammonia particles in the hot water bath reached the indicator paper slower than the molecules in the cold water bath

• c. The evidence for this is that the indicator changed color slower over the hot water bath, indicating that the molecules that make up the ammonia had traveled up and out of the flask as they were heated and turned from gas to liquid

• d. The evidence for this is that the indicator changed color faster over the hot water bath, indicating that the molecules that make up the ammonia had traveled up and out of the flask as they were heated and turned from liquid to gas.

Tags

NGSS.MS-PS1-4

What does the temperature of a substance tell about the speed of the particles? Choose all that apply.

• .a. When you heat a substance, the particles in that substance move slower

• .b. When you heat a substance, the particles in that substance move faster

• c. When you cool down a substance, the particles in that substance move faster

• .d. When you cool down a substance, the particles in that substance move slower.

Tags

NGSS.MS-PS1-4

2. How does cooling/heating affect the number of collisions?

• a. When you cool a substance, the number of collisions increases. When you heat a substance, the number of collisions decreases.

• When you cool a substance, the number of collisions decreases. When you heat a substance, the number of collisions increases

• .c. Different temperatures do not affect the number of collisions

• .d. When heat is added, some of the empty space between the molecules is used up so that the molecules are forced to be closer to together so there are more collisions due to the crowding of molecules.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Part 1: Which model is a balloon that is warm?

• a. The large balloon

• b. The small balloon

• c. Neither balloon shows a temperature

• d. Both of the balloons are the same.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What do the purple circles represent?

• a. movement

• b. Air particles

• C. Empty Space

• D. Oxygen elements in the air.

Tags

NGSS.MS-ESS2-5

What do the arrows represent?

• a. Movement

• b. Air particles

• c. Empty Space

• d. The temperature of the air molecules.

Tags

NGSS.MS-PS1-4

What is between the purple circles and arrows?

• a. empty space

• b. air particles

• c. movement

• d. bacteria in the air