Stemscopedia Investigating Soil 4th grade

a component of soil made of very tiny grains sticky when wet and turns hard when dry.

• clay

• soil

• gravel

• sand

Match the following

• sand

• to hold inside as soil does with water

• clay

• sticky when wet hard when dry

• gravel

• soil made by the weathering of rocks and tiny grains

• top soil

• smaller pieces of rocks and pebbles and usually has a smooth texture.

• retain

• layer of soil at the top.

Soil is a mixture of ​ (a)   , ​ (b)   , ​ (c)   and rock.

• sand
• silt
• clay,
• dirt
• rust
• trash
• water

Tags

NGSS.MS-LS2-3

Reorder the following from largest to smallest

• clay

• silt

• sand

• gravel

 a layer of soil at the top

• clay

• gravel

• silt

• top soil

Retain water is ​ (a)   water.

• holding
• draining
• getting rid of

Tags

NGSS.MS-ESS2-4

a component of soil made by the weathering of rocks and tiny grains

• clay

• sand

• soil

• top soil

Match the following

• silt

• 
• soil

• 
• clay

• 
• gravel

• 
• sand

• 

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Gravel is a component of soil made of smaller pieces of rocks and pebbles and usually has a ______ texture.

Retain is to hold ​ (a)   as soil does with water.

• inside
• outside
• below
• animals
• plants