Science CBA #2 Review

When testing which soil would support plant growth the best, you should use a different type of soil in each pot and the same type of seed.

• FACT

• FIB

Answer explanation

If you want to see WHICH soil supports growth, you would need to use DIFFERENT soils.

HOWEVER, you would need to make sure that every other factor (seed, volume of water, amount of sunlight, container size, etc.) is the SAME. Otherwise, you wouldn't be able to tell exactly what factor caused one plant to grow better than another.

The image shows how a scientist could accurately test which soil best supports plant growth.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Air, plants, and water are nonrenewable resources.

• FACT

• FIB

Answer explanation

These resources are renewable. They replace themselves in a relatively short period of time.

Nonrenewable resources that should be CONserved include:

Coal

Oil and

Natural Gas

Renewable resources are resources that can be replaced in a relatively short period of time.

• FACT

• FIB

Weathering, erosion and deposition can be caused by wind only.

• FACT

• FIB

Answer explanation

Water and ice also cause these.

You can test a soil’s texture by rubbing it between your fingers.

• FACT

• FIB

Answer explanation

Texture refers to how something feels.

Some types of soil retain water better than others.

• FACT

• FIB

Answer explanation

This lab helped us see that some soils retain more water than others.

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NGSS.MS-ESS2-4

Sandy soil retains water the best out of all of the soil types.

• FACT

• FIB

Answer explanation

Sandy soil is the WORST at retaining water. Clay is the best.

Sand dunes are caused by water moving the sand.

• FACT

• FIB

Answer explanation

Sand dunes are caused when WIND drops sand in one area.

Coal, oil, and natural gas are examples of fossil fuels.

• FACT

• FIB

Answer explanation

These are nonrenewable fossil fuels that need to be conserved.

Erosion is the process of weathered materials LANDING in a new location.

• FACT

• FIB

Answer explanation

EROSION (e-GO-sion) is when material moves (or goes) from one place to another- carried by wind, water, or ice.

DEPOSITION is when weathered materials DROP or land in a new location- like DUNES or DELTAS.

WEATHERING occurs when wind, water, or ice wears down, breaks, or cracks a material like rock.