6th Grade Review

Front

Which of the following is NOT one of the three layers of soil? topsoil, undersoil, subsoil, bedrock

Back

undersoil

Front

Which of the following is NOT one of the three types of soil? clay, sand, silt, mud

Back

mud

Front

Humus is.....

Back

the dead parts of plants and animals in soil.

Front

What is a soil problem all farmers face? Options: soil hardening, soil erosion, soil spoiling, soil pollution

Back

soil erosion

Front

_______ is the type of soil used most often with plants. It is a mixture of clay, sand, and silt.

Back

loam

Front

Which layer of soil is on the bottom? Options: topsoil, subsoil, bedrock, bottomsoil

Back

bedrock

Front

Electromagnetic waves________________travel through space.

Back

Can

Front

The blue section of the wave is measuring _________________.

Back

wavelength

Front

_____________________light is the only type of EM wave detected by the human eye.

Back

Visible

Front

_______ carry the greatest amount of energy.

Back

gamma rays