Soil

What is loam?

• an even mixture of sand, silt, and clay

• soil made of mostly sand

• soil made of mostly clay

• a mixture of gravel and sand

If 100 mL is poured through each weathered rock, which retained the most water?

• clay

• gravel

• sand

• silt

Tags

NGSS.MS-ESS2-4

When testing the soil texture of each soil sample, what is the next step after wetting each sample?

• rub the sample between your fingers

• plant a flower in each sample

• examine each sample with a hand lens

• look at the color of each sample

Soil is formed when _____ are broken down by living things, weather, and water over long periods of time.

• rocks

• houses

• animals

• fossils

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Choose the 2 most important reasons to protect/conserve soil?

• It provides support for plant growth.

• It provides nutrients to plants to help them grow.

• It contains many harmful pollutants.

• It is a good source of food for humans.

Tags

NGSS.MS-LS2-1

What is a good way to conserve soil?

• plant bushes

• clear all the plants to build a dirt bike track

• cut down trees

• remove all the weeds from the garden

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5

NGSS.MS-LS2-5

Which answer orders rock particles from smallest to largest correctly?

• clay

• silt

• sand

• clay

Humus is decayed living/organic matter. It adds _______ to the soil.

• worms

• nutrients

• air

• sunlight

• smell

Tags

NGSS.MS-LS2-1

Clay is...

• never sticky.

• does not hold water well.

• does not contain many nutrients.

• sticky, holds water well, and has nutrients.

Replanting a plant in sandy soil is not best because...

• It will grow very well.

• Sand does not hold water well and does not have many nutrients so it won't grow well.

• Sand washes/runs away easily.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5