Question

Jasmine adds varying amounts of ice to samples of water. Which conclusion can she draw from her experiment?(1 point)
Responses

As water temperature increases, the water molecules’ kinetic energy decreases.
As water temperature increases, the water molecules’ kinetic energy decreases.

As water temperature decreases, the water molecules’ kinetic energy increases.​​​​​​​
As water temperature decreases, the water molecules’ kinetic energy increases. ​​​​​​​

As ice added decreases, the water temperature decreases.
As ice added decreases, the water temperature decreases.

As ice added increases, the change in water temperature increases.

Answer 1

A student puts different numbers of ice cubes into four separate containers of water. She calculates the change in temperature in each container after half an hour. In this experiment, what is the independent variable?(1 point)
Responses

Initial water temperature
Initial water temperature

Time elapsed
Time elapsed

Final water temperature
Final water temperature

Number of ice cubes added

Answer 2

Joshua fills one large container with cold water Then he fills a small container with hot water and red food coloring, and seals it with a lid. Next, he puts the small container into the large container and removes the lid of the small container. He observes the red colored water from the small container rising up to the top of the cold water. Which two statements explain why this happens?(1 point)
Responses

because the hot water is less dense than the cold water
because the hot water is less dense than the cold water

because the hot water is more dense than the cold water
because the hot water is more dense than the cold water

because the hot water molecules move faster than those of cold water
because the hot water molecules move faster than those of cold water

because the hot water molecules move as fast as those of cold water
because the hot water molecules move as fast as those of cold water

because the hot water has the same density as the cold water
because the hot water has the same density as the cold water

Answer 3

As ice added increases, the change in water temperature increases.

Answer 4

Number of ice cubes added

Answer 5

because the hot water is less dense than the cold water and because the hot water molecules move faster than those of cold water