What is the only thing on earth that can scratch a diamond?

What is it called when we say a rock is shiny?

Which layer of soil contains large rocks that have not been weathered yet?

Which kind of rock is formed from heat and pressure?

How does soil help the trees?

Which rocks come from volcanoes?

which layer of soil is improved when we put out compost?

Which soil has small grains, holds lots of water, and is very sticky when wet?

All rocks are made of ____________________.

This soil is soft and crumbly. It is made up of decayed plants and animals.

What is the color left behind when a mineral is scratched across a surface?

Which soil layer has lots of humus, and is good for growing plants?

A mineral's hardness, color, luster, and streak are examples of its _______________________.

This soil has large, gritty pieces, and it will NOT hold water easily.

__________________________ rocks form in layers.

This soil has large grains with lots of humus. It is dark and rich soil for plants.

A rock has fossils of ocean plants and seashells in it. Where was this rock probably found?

This soil has tiny pieces, smaller than sand. It feels like a soft powder.

What do we call a mineral's ability to resist scratching?