CAST Prep Grade 6 MS-ESS2-4

CAST Prep Grade 6
MS-ESS2-4

By Patrick Cochrane

MS-ESS2-4

Develop a model to describe the cycling of water through Earth’s systems driven by energy from the sun and the force of gravity.

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Multiple Choice

Sally took a hot shower one early winter morning and noticed that her bathroom mirror

was fogged up. She knows that fog is made of water, but she is curious about what is

happening to the mirror. She wants to know where the water that made the fog on the

mirror came from.

• Water droplets from the shower splashed on the mirror.

• Water vapor from air inside the bathroom to the mirror.

• Water droplets from the other side of the mirror.

• Water vapor from outside of the bathroom.

Reorder

Sally did some research on her own and now she wants to teach her sister about the process of how the fog got on the mirror in the shower. Sally will use a flow chart to

explain the process. Place the processes in order.

• The warm water from the shower increases the temperature

  in the bathroom.

• The amount of water vapor in the air increases.

• Water settles on the cold mirror and forms droplets.

1

2

3

• 1
• 2
• 3

Labelling

Based on her observations, Sally is convinced that the system of water in the bathroom is a small-scale model of Earth’s water cycle.

Label the events from Earth’s water cycle to the events that Sally observes in her bathroom.

Drag labels to their correct position on the image

B

C

A

Drag and Drop

Water droplets fall from clouds to Earth because the force of gravity

Placeholder

the water droplets to the surface.

Drag these tiles and drop them in the correct blank above

pulls

pushes

Multiple Select

Sally finds her science notes about the water cycle. The notes are shown below, however, they are missing some key aspects that explain how the water cycle works.

Select the TWO statements that explain how Sally could improve her model:

• Add arrows that show the direction of water movement

• Remove transpiration and run-off

• Add an energy source

• Add more rain and soil

Open Ended

Choose a part of the water cycle where water is changing state and describe the

role of energy in this change. In your description, your answer should include:

● Identify a part of the water cycle where water is changing state

● State the source of the energy and its role in the change

● Describe where in a natural system this change is occurring