Millions of Years
Natural Resource
Sand
Rock Cycle
Organic Material
Obsidian
Reuse
Potted plants, outdoor gardens, and add it to the soil to make it richer and thicker
Geologists
Minerals
Metamorphic Rocks
Recycle
Igneous Rocks
Nonrenewable Resources
Silt
Mineralogists
Topsoil, subsoil, bedrock
Dead animals, live animals, insects, dead plants, roots, rocks, pebbles, stones, water, and air
Reduce
Sedimentary Rocks
False
Granite
Compost
Darker
Clay
What type of rock is made from heat and pressure inside the Earth?
To use less of something
An example of an igneous rock with particles too small to be seen with the plain eye.
Particles of rock that are smaller than sand but bigger than clay, feels gritty when rubbed between your fingers.
The process of rocks changing from one kind of rock to another.
True or False. Plants grow well in bedrock?
What type of rock is made from weathered particles which build up and are pressed and hardened?
Name one thing people use topsoil for.....?
List 4 things you might find in soil.
What types of rocks are made from lava that cools and hardens?
When something is made into a new product
What is a resource that, once used, cannot be replaced in a reasonable amount of time?
Scientists who study minerals
The remains of dead plants that have begun to break down
What are rocks made from?
What is anything from nature that people can use?
Scientists who study rocks
The smallest sized particle of soil, it is soft and sticky to the touch
When you use something again?
An igneous rock with large particles.
List the layers of soil beginning with the top layer, then the middle layer, and finally the bottom layer.
The part of soil that was once a living or was formed by the activity of living things, also called loam
The more decomposing plants and animals in the soil means the color is .....?
Rocks can change families. How long does this process take?
Particles of rock that are smaller than pebbles but larger than silt.
