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Science Review
Q2 Science Review Fourth Grade
Question | Answer |
---|---|
__________ is a PULL TOWARDS Earth? | gravity |
___________ attracts (pulls) or repels (pushes) certain types of metals? | magnetism |
____________ SLOWS a moving object down and eventually makes it stop. | friction |
A push or a pull is a ____________. | force |
What is a household item made from a RENEWABLE resource? | wooden spoon |
Trees, water, air/wind, animals, soil, bacteria, and plants are examples of ________________ RESOURCES. | renewable |
RENEWABLE resources can be _________________. | replaced |
Resources that CANNOT BE REPLACED are called __________________. | nonrenewable |
Soil, mineral, rocks, coal, oil, and natural gas are examples of ________________________ RESOURCES. | nonrenewable |
_____________ soil feels coarse and WATER PASSES through it QUICKLY. | sandy |
What type of soil DOES NOT support plant growth? | sandy |
__________________ soil is dark soil, rich in organic material or humus. | loamy |
What type of soil is best suited for water retention and is good to use for a vegetable garden? | loamy |
Course/rough, soft/slippery, wet, grainy, or clumpy describes SOIL __________________. | texture |
What type of soil is rough, gritty, and allows water to quickly flow through? | sand |
a substance that provides NOURISHMENT | nutrient |
to break down | decompose |
a mixture of small pieces of rock, water, air, and humus | soil |
to keep or hold back | retain |
a mixture of decomposed plants and animals in soil | humus |
a SMALL piece of soil | particle |
a mixture of sand, silt, and clay that RETAINS a fair amount of WATER | loam |
a thick, wet, smooth type of soil that is nutrient-rich and DOES NOT allow water to flow through quickly | clay |
a soft soil that RETAILS A LOT of WATER and is nutrient-rich | silt |
anything from NATURE that people use | natural resource |
to use wisely | conserve |
a plant-based solid resource that can be burned for energy | coal |
a liquid resource that can be burned for energy | oil |
an invisible, odorless gas that is burned for energy | natural gas |
What kind of materials CANNOT be recycled, but CAN be REDUCED or REUSED? | food and clothes |
What can cause air pollution? | cars that use gasoline |
_________________ refers to whether or not thermal ENERGY (heat) PASSES THROUGH a substance. | thermal conductivity |
__________________ allow energy to pass through. | conductors |
___________________ DO NOT allow energy to pass through. | insulators |
Which materials are good CONDUCTORS of TERMAL ENERGY? | metal and glass |
____________________ refers to whether or not ELECTRICITY easily PASSES THROUGH a substance. | electrical conductivity |
Electrical conductors and insulators are used in ______________________. | circuits |
Electrical insulators should be_____________________. | strong and flexible |
An example of a GOOD ELECTRICAL CONDUCTOR is __________. | copper |
An example of a POOR ELECTRICAL CONDUCTOR is _____________. | glass |
Plastic wrap, foam pool noodle, latex balloon, wool fabric, a cotton ball, and a plastic cup are THERMAL ____________________. | insulators |
Aluminum foil and copper wire are THERMAL ___________. | conductors |
Metal coins, safety pins, brass keys, batteries, steel washers, and aluminum foil are ELECTRICAL _________________. | conductors |
Plastic straws, glass marbles, wooden sticks, cotton string, and cotton balls are ELECTRICAL______________. | insulators |
Smooth, small rocks are ______________. | gravel |