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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
Benjamin Franklin discovered the form of energy produced by lightning. Experiments with lightning killed many people before he discovered that lightning is a form of _______.
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Electricity
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Used to turn on lights.
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Oxygen, nitrogen, and carbon dioxide may be grouped together because at room temperature they are all a ________.
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Gas
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Used in cars.
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What moves faster if the temperature of a metal pan is increased?
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Molecules
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Thicker as a solid than as a gas.
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What does transparent mean?
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Clear or see-through.
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Think of a window.
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The smallest quantity of an element is called a what?
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An atom
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It is round.
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A bar magnet is placed on a table, and a sheet of blank paper is placed over the magnet. What could be sprinkled on the paper to show the magnetic field of the bar magnet?
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Iron filings
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Little metal particles.
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A wheel barrow uses what two simple machines to make work easier?
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Wheel and axle and a lever.
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A) Gears and a lever
B) A wheel and axle and a wedge C) A wheel and axle and a lever |
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Electric lights will not come on unless their electrical circuit becomes what kind of circuit?
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A closed circuit
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A) Series circuit
B) Closed circuit C) Short circuit |
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Sound waves travel best through what?
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Solids
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A) Liquid
B) Gas C) Solid |
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When a roller coaster picks up speed in order to be carried from one hill to another, it uses what kind of energy?
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Kinetic energy
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A.) Potential energy
B.) Kinetic energy C.) Magnetic energy |
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When light hits an object, the rays can pass through it, bounce off it, or be absorbed by it. Light rays that bounce back are called what?
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Reflected
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A.) Refracted
B.) radiant C.) Reflected |