Soil + Water Cycle

Which of the following components of soil has decayed matter (dead animals and plants) and provides nutrients?

• clay

• silt

• humus

• rocks

Tags

NGSS.MS-LS2-1

Look closely at the two pictures. The picture on the left shows the soil being washed away by water.

How did the changes in the photo on the right help to solve the problem of soil erosion?

• It is sunnier and it rains less.

  
  

• The wind won’t blow away the soil because of the house.

  
  

• The soil is held in place by the plants.

Which component of soil has large grains and helps soil drain?

• clay

• sand

• humus

• nutrients

Plants need nutrients and _____ from soil.

• animals

• crystals

• seeds

• support

Tags

NGSS.MS-LS2-1

It's important to conserve (save) soil because it takes hundreds of _______ for soil to form.

• hours

• days

• years

• weeks

Tags

NGSS.MS-LS2-5

What might happen to the soil if the decomposers could no longer survive?

• The soil would support many plants.

• The soil would be very wet and only certain plants would be able to survive.

• The dead plants and animals would not be broken down, and plants would not get the nutrients they need.

Tags

NGSS.MS-LS2-3

The water cycle always begins with the _________.

• air

• sun

• moon

• Earth

Tags

NGSS.MS-ESS2-4

Which state of the water cycle is number 3?

• precipitation

• condensation

• evaporation

• sun

Tags

NGSS.MS-ESS2-4

Which state of the water cycle is number 1?

• precipitation

• condensation

• evaporation

• sun

Tags

NGSS.MS-ESS2-4

Which state of the water cycle is number 2?

• precipitation

• condensation

• evaporation

• sun

Tags

NGSS.MS-ESS2-4