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20 questions
What is the only thing on earth that can scratch a diamond?
a bulldozer
another diamond
a fingernail
a nail
How does soil help the trees?
it grows leaves for them
it gives nutrients to the trees
it blows in the wind
it catches dead leaves
Which soil has small grains, holds lots of water, and is very sticky when wet?
clay
sand
silt
dirt
Jonathan has a rock collection. The rocks all look different. What is one way that all rocks are alike?
All rocks are the same size.
All rocks are shiny.
All rocks are the same shape.
All rocks are nonliving objects.
Justine digs in her garden. She sees many things in the soil.
Which nonliving things might Justine see in the soil?
earthworms
rocks
weeds
spiders
Soil is formed over a long time. Which sentence best tells how soil forms?
Soil forms when rocks break down and mix with dead plants and animals.
Soil forms when a lot of rain falls on the ground at once.
Soil forms when sand is mixed with water.
Soil forms when large rocks break down and turn into sand and water.
Frank wants to grow some bean seeds in a flowerpot. Which soil should Frank put in the pot?
soil with a lot of clay
soil with a lot of sand
soil with a lot of rocks
soil with a lot of humus
A scientist measures how tall a certain type of plant grows in three different types of soil. What question is the scientist trying to answer?
How many plants can grow in small pots of soil?
What type of soil is best for this kind of plant?
What kinds of plants grow in sandy soil?
How tall can a plant grow?
Granite is ... and has large grains.
smooth
small
hard
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