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50 Cards in this Set
- Front
- Back
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a very big rock |
boulder |
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the moving of rock or soil by wind, water, etc. |
erosion |
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nonliving materials that come from the Earth and are part of rocks |
minerals |
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a useful material that comes from the Earth |
natural resources |
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the adding of harmful things to the land, air, or water |
pollution |
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to change something so that it can be used again |
recycle |
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to use less of something |
reduce |
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to use something again |
reuse |
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tiny pieces of rock |
sand |
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the breaking apart and changing of rocks |
weathering |
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the process of respecting and using our resources in a responsible manner includes recycling, reducing, and reusing |
conservation |
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when people replant a forest after a forest fire |
reforestation |
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natural resources that are not easily replaced after being used or reproduce at a slower rate than are being used |
nonrenewable resources |
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moving air |
wind |
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the process by which rocks are formed, broken apart, and reformed |
rock cycle |
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rocks formed from heat and pressure |
metamorphic rocks |
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rocks formed from layers of sediments |
sedimentary rocks |
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little pieces of rock formed by weathering or erosion |
sediment |
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rocks formed from hot magma that cools |
igneous rocks |
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rich soil which contains decaying parts of living things |
humus |
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a safe place for animals and plants to live |
refuge |
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Know the rock cycle diagram |
see back of the science vocabulary study guide sheet |
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What are the 3 layers of soil from the bottom to the top, in order? |
bedrock, subsoil, topsoil |
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a natural resource is a useful material that comes from the _____. Give 5 examples. |
Earth sunlight, water, forests, oil, coal |
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_____ and ____ cannot be replaced by the Earth once they are used up. |
Oil, coal |
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Some resources can be ____ after used. Example: __________. |
replaced new trees can be planted |
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____, ____, and ____ can never be used up. |
Sunlight, water, air |
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People use water in ___ ____. |
many ways |
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Living things need ____ to live. |
air |
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Wind is __ ___. |
moving air |
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Rocks are __ ___. |
natural resources |
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Rocks come in many ____, _____, and _____. |
shapes, colors, sizes |
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A very ___ rock is called a boulder. |
big |
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Sand is made of tiny pieces of ____. |
rock |
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Minerals are ____ materials that come from ____. ____, ____, and ____ are minerals. |
nonliving, Earth gold, iron, silver |
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Soil is a ___ ____. Many soils are a mixture of _____, ____ and _____. |
natural resource clay, sand, humus |
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Soil can be different _____, ___ or ____, ___ or ____. |
colors, hard, soft, wet, dry |
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People use plants in many ways---___, ____, and ____. |
food, shelter, clothing |
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Earth is always _____. |
changing |
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Erosion happens when rocks or soil are moved by ____ or ____. |
water, wind |
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____ can help prevent erosion. |
Plants |
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Weathering is the ___ ___ and ___ of rocks. ____ and change in _____ can cause weathering. |
breaking apart, changing Water, temperature |
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Pollution happens when something ____ is added to the land, air, or water. |
harmful |
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Recycle means to change something so that it can be used _____. |
again |
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Reuse means to ____ ____ ____. |
use something again |
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Reduce means to ___ ___. |
use less |
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Forests are always ____. |
changing |
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A refuge is a ____ place for ___ and ___ to live. |
safe, plants, animals |
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Name the 3 types of rocks. |
Metamorphic, sedimentary, igneous |
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Name the 3 layers of soil and their characteristics and order. |
Topsoil-Top layer of soil with lots of humus (nutrient rich soil with decaying parts of living things Subsoil-Middle layer of soil; little humus; small rocks Bedrock-Bottom layer of soil; primarily large rocks |
