States of matter, simple machines, and basic chemistry and physics facts for a middle school physical science course.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What is a solid?
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Matter with a definite shape and volume that does not change- What is a liquid?
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Matter with a definite volume but no definite shape; it takes the shape of its container- What is a gas?
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Matter with no definite shape or volume; it spreads to fill its container- What is plasma?
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A fourth state of matter consisting of ionized gas with free electrons and ions- What is melting?
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The process in which a solid changes into a liquid- What is freezing?
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The process in which a liquid changes into a solid- What is boiling?
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The process in which a liquid changes into a gas- What is condensation?
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The process in which a gas changes into a liquid- What is sublimation?
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The process in which a solid changes directly into a gas without becoming a liquid- At what temperature does water freeze?
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0 degrees Celsius (32 degrees Fahrenheit)- What is a lever?
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A simple machine made of a bar that pivots on a fixed point called a fulcrum- What is a fulcrum?
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The pivot point on which a lever rotates- What is a pulley?
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A simple machine with a grooved wheel and a rope used to lift objects or change the direction of force- What is an inclined plane?
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A simple machine that is a slanted surface used to raise or lower objects- What is a wedge?
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A simple machine shaped like a triangle used to cut, split, or separate objects
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