Soil, Erosion and Weathering Review

I am a soil that has large particles, does not retain much water and feels rough and gritty. Who am I?

• Loam/topsoil

• Clay

• Sand

I am a soil that has medium sized particles, holds the perfect amount of water and feels soft. Who am I?

• Loam/topsoil

• Clay

• Sand

I am a type of soil that has the smallest particles, retains lots of water and is smooth when wet and hard when dry. Who am I?

• Loam/Topsoil

• Sand

• Clay

A student noticed a crack in a large rock. What could be one of the causes of this crack over time?

• A tree root grew up into the crack and slowly made it bigger.

• An animal rolled the rock around

• Lots of rain got the rock wet and caused it to crack

• A large gust of wind caused the crack to grow.

Tags

NGSS.MS-ESS2-2

Based on the information in the chart, which soil would be best to use if you want it to hold onto the MOST water?

• Sand

• Loam

• Clay

If you wanted to see how a plant grew in each type of soil, how would you set up your experiment?

• Put all the soil together in one cup and plant the seed

• Pour water over the soil through a filter and then plant the seed in the water

• Put one seed in each type of soil and then water them

• Plant the seed in only the one you think is the best

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the purpose of a hand lens (magnifying glass) when investigating soils?

• to see what color the soil is

• to see the particle size up close

• to see how it feels

• to see how it smells

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

How do sandy beaches form?

• Waves pounding pebbles into smaller and smaller pieces

• Wind eroding pebbles into smaller pieces

• Water freezing and thawing the cracks of pebbles

• Rain wearing away rocks into smaller and smaller pieces

Tags

NGSS.MS-ESS2-4

How do plants weather rocks?

• during photosynthesis
• when roots grow into cracks of rocks and expand the rock
• when the plant moves water from the roots to the leaves
• Plants don't weather rocks

Tags

NGSS.MS-LS1-5