Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Soil Study Guide

3rd Grade Science

QuestionAnswer
What is it called when weather (moving water, wind and ice) breaks down rocks into smaller and smaller pieces. Weathering
What is it called when weathered materials (soil) is moved (washed away) by wind and water? Erosion
What is a mixture of weathered rock (clay, sand and silt), minerals, water, air and humus? Soil
What are nutrients created from decaying plants and animals in the soil called? Humus
What is like vitamins for plants in the soil? Humus
What helps mix soil and create holes and tunnels in the soil for air, water and the roots of plants? Worms
What is waste from a person's home or yard that can be saved to help make soil rich in humus? compost
What is it when you take care of resources and do NOT waste them? Conserve
What are the four different types of soil? Sand, Silt, Clay and Loam
What type of soil has large, rough particles, is very loosely packed, does not hold water well, and is not strong enough to hold heavy plants upright? Sand
What type of soil feels like flour, can be dusty and does not have any nutrients in it? Silt
What type of soil is sticky, thick, holds too much water and is packed very tightly? Clay
What type of soil holds water well, has a lot of nutrients and is best for growing plants? Loam
What are the three layers of soil? Topsoil, Subsoil, and Bedrock
What is the top layer of soil, can have humus and is best for growing plants? Topsoil
What is the second layer of soil and has no humus. Subsoil
What is the bottom layer of soil, has large pieces of solid rock, and is the layer where new soil begins? Bedrock
Created by: irwinsnc
Popular Earth Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards