The flashcards below were created by user
swestling
on FreezingBlue Flashcards.
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What type of property is mass?
physical
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When a liquid becomes a gas, what point has it reached?
boiling point
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What two variables does density depend on?
mass and volume
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Choose the one that is not a physical change from freezing, dissolving, burning or evaporating.
burning
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A rock sitting on top of a hill has what kind of energy?
potential energy
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What happens to the particles in something that heats up?
Their kinetic energy increases.
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How does heat move?
From warmer objects to cooler objects.
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Where is chemical energy stored?
The bonds between atoms.
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Looking at copper, glass , rubber and wood, which one is not an insulator for electricity?
copper
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An atom has equal numbers of protons and what?
electrons
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Every proton and electron is surrounded by ____?
an electric field.
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When an object has more negative charge than positive charge, the result is called .....?
a static charge
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Why do you get shocked when you touch a doorknob?
Electrons move from the doorknob to you.
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What happens in a hydroelectric plant?
Kinetic energy is converted into electrical energy.
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What situation must exist for electric charges to flow in a circuit?
There must be an electric field.
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How are atmosphere layers distinguished ?
by their composition, temperature, and altitude
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What is temperature?
How fast the air molecules are moving.
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Name 6 Weather factors ?
Temperature, cloud cover, wind speed, humidity, air pressure and wind direction.
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What weather factor occur because of changes in temperature and pressure?
wind
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Where do the basic activities of life occur?
cell
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What is the organelle found only in plants?
CHLOROPLAST
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What does a group of specialized cells first form? cell, tissue, system or organ?
tissue
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What provides support and protection for plant cells?
cell wall
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What is the habitat for a squirrel?
a tree
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What is an organism?
a living thing that uses energy, reproduces and grows.
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What kind organisms are most producers?
plants
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How do most decomposers recycle?
eating dead organisms
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What resource are we most likely to run out of?
petroleum products
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What renewable resource is Oklahoma currently developing?
wind
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Define a natural resource.
an item found in nature that living organisms use.
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What non renewable resource is Oklahoma famous for?
petroleum products.
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