How could you test ideas about how the slope affects how the channel looks using this stream table?

• Adjust the legs

• Use different amounts of sand

• Different amounts of water

• Using different material other than sand

Tags

NGSS.MS-ETS1-2

If you adjust the legs so there is a steep slope, how will that affect the channel?

• It will make the channel deeper and wider

• It will make the channel deeper and narrower

• It will make the channel shallower and wider

• It will make the channel shallower and narrower

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

How could you use this stream table to test the idea that smaller grains of sand lead to deep, narrow rivers?

• He could place larger grains of sand in the table to see how that affects the channel.

• He could place smaller grains of sand in the table to see how that affects the channel.

• He should use a different liquid to see how that affects the channels.

Tags

NGSS.MS-PS2-2

If we lowered the adjustable legs to make the slope shallower, what effects would we see on the channel?

• The channel would become deeper and narrower

• The channel would become deeper and wider

• The channel would become shallower and narrower

• The channel would become shallower and wider

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Two students are debating whether a very steep hill will make a narrow and deep channel, or if small grains of sand will make a narrow deep channel. What results of the model would be evidence that it is a very steep hill that affects the channel?

• They test the slope and small grains of sand at the same time and record the results

• They test the slope by steadily making it steeper and see how that affects it, then test the size of the sand grains separately at a fixed slope.

• They test the sand grain size by adjusting the slope.

• They test the size of the grains of sand by changing the sand and seeing how it affects the channel, then they test a steep slope.

Tags

NGSS.MS-ESS2-2

Information about the natural world that is used to support or go against a claim.

• Claim

• Reasoning

• Evidence

• Model

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

A feature that forms on the surface of a planet, such as a mountain, channel, or sand dune.

• Rocky Planet

• Habitable

• Geologic Process

• Landform

A proposed answer to a question about the natural world

• Claim

• Evidence

• Reasoning

• Model

Having conditions necessary to support life

• Model

• Landform

• Habitable

• Geologic Process

Tags

NGSS.MS-ESS2-4

The process of making clear how your evidence supports your claim

• Claim

• Evidence

• Reasoning

• Model

Tags

NGSS.MS-LS2-4

NGSS.MS-PS3-5