6.1 Water on the Move POST TEST

First Name

Last Name

Science Hour

• 3rd hour
• 4th hour
• 5th hour

1. Mrs. Brey has taken a beaker of water and placed it carefully over a lit burner in the classroom, as shown in the diagram on the right. Predict what will happen to the motion of the water particles and the reason why you think this will occur.

• A. The speed of the particles will decrease because there is increased friction between the water particles.
• B. The speed of the particles will increase because the thermal energy of the water in the beaker increases.
• C. The speed of the particles will decrease because the particles are moving farther apart.
• D. The speed of the particles will increase because the water particles are breaking apart.

2.Mrs. Brey has taken a beaker of water and placed it carefully over a lit burner in the classroom, as shown in the diagram on the right. The beaker has been allowed to stay on the burner during the whole class. By the end of the class, you observe that there is less liquid water in the beaker. The beaker isn’t leaking. Which of the following explains why there is less water?

• A. The water particles were broken into smaller pieces.
• B. The water particles got smaller and now take up less space.
• C. The water particles became a gas and are now part of the air.
• D. The water particles disappeared and no longer exist.

3. After turning off the burner, you add 5 ice cubes to the hot water in the beaker. The ice cubes melt quickly. What is happening to the thermal energy of the ice cubes as they melt?

• A. The thermal energy of the ice cubes is increasing.
• B. The thermal energy of the ice cubes is decreasing.
• C. The thermal energy of the ice cubes is staying the same.
• D. There is not enough information to tell what is happening to the thermal energy of the ice cubes.

4. The drops of liquid are coming from the __________________.

• B AIR
• A LIQUID
• C INCREASES
• D GAS
• E DECREASES

5. They are formed as the motion of the particles in the air ________________.

• E DECREASES
• A LIQUID
• B AIR
• C INCREASES
• D GAS

6. This change in motion causes ___________________

• F WATER
• A LIQUID
• B AIR
• C INCREASES
• D GAS

7. in the air to change from a ___________________

• D GAS
• A LIQUID
• B AIR
• C INCREASES
• E DECREASES