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A group of students used two plastic bags to model the water cycle. The students placed 100 milliliters of water into each bag and sealed the bags tightly. Then the students placed one bag in a dark closet and the other bag on a windowsill, in a sunny room. After a few hours the students checked the plastic bags. What did the students most likely see when they checked the plastic bags?

• The bag in the windowsill was empty, but the bag in the closet was full.

• The bag in the closet had more condensation than the bag in the windowsill.

• The bag in the closet and the bag in the windowsill both showed equal amounts of evaporation.

• The bag on the windowsill had more condensation than the bag in the closet.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Students created models of the water cycle using empty plastic bottles. Water was placed in the bottom of each bottle and the top was sealed with a plastic cap. The bottles were then placed in a sunny window in the classroom. What would best represent the precipitation step of the water cycle in this model?

• water drops in the bottle collecting at the top

• water drops in the bottle moving down the sides

• the amount of water decreasing at the bottom of the bottle

• sunlight from the window warming the water at the bottom of the bottle

Tags

NGSS.MS-ESS2-4

Which sequence below shows how water leaves the ocean and returns to land as it moves through the water cycle?

• condensation, precipitation, evaporation

• evaporation, condensation, precipitation

• evaporation, precipitation, condensation

• precipitation, condensation, and precipitation

Tags

NGSS.MS-ESS2-4

Which stage in the water cycle is represented by the arrow showing water vapor rising from the sea?

• collection

• condensation

• evaporation

• precipitation

Tags

NGSS.MS-ESS2-4

Rain, sleet, snow, and hail are all examples of what?

• precipitation

• evaporation

• condensation

• groundwater

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Water runs down creeks and rivers until it flows into the ocean. At what stage in the water cycle does the water return to creeks and rivers?

• Condensation

• Evaporation

• Precipitation

• Vapor formation

Tags

NGSS.MS-ESS2-4

One morning, Ryan noticed there were tiny drops of water on the grass as he walked to school. That afternoon, he did not see any drops of water on the grass when he returned home. Which of the following best explains what happened to the drops of water?

• The heat from the air caused the water drops to boil.

• The air cooled the water and caused the drops to freeze.

• The Sun heated the water and caused the drops to evaporate.

• The energy from the Sun caused the water drops to condense.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Which step in the water cycle returns water directly to the oceans?

• condensation

• evaporation

• transpiration

• precipitation

Tags

NGSS.MS-ESS2-4

Where is most of Earth's water found?

• underground

• in Earth's oceans

• in rivers and lakes

• in polar ice caps

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Loveleen sees snowflakes through her hand lens. Which is the best description of what Loveleen is seeing?

• balls of ice

• frozen ice crystals

• frozen water drops

• water in liquid form

Tags

NGSS.MS-ESS2-4