100: What is matter?
Answer: Anything that has mass and takes up space.
100: What is volume?
Answer: The amount of space an object takes up.
100: What is the unit of measure for weight?
Answer: Newton (N).
100: Name the three common states of matter.
Answer: Solid, liquid, gas.
100: What is melting?
Answer: The change from a solid to a liquid.
200: Give an example of something that is not matter.
Answer: Light or sound.
200: What is the SI unit for mass?
Answer: Kilogram (kg).
200: How does mass differ from weight?
Answer: Mass does not change with location, while weight does.
200: How do the particles behave in a solid?
Answer: They are tightly packed and vibrate in place.
200: What must be added to a substance to cause it to melt?
Answer: Heat energy.
300: What is the SI unit for measuring volume?
Answer: Cubic meter (m³).
300: Describe the difference between mass and weight.
Answer: Mass is the amount of matter in an object; weight is the gravitational force on that object.
300: What instrument is used to measure mass?
Answer: A balance.
300: What happens to particles of a liquid compared to a solid?
Answer: They can slide past one another and have more energy.
300: Describe what happens during evaporation.
Answer: Liquid changes to gas by gaining energy.
400: What happens to the water level when an object is placed in it?
Answer: The water level rises due to displacement.
400: What is a meniscus?
Answer: The curve of a liquid's surface in a container.
400: If an object weighs 10 N on Earth, how much would it weigh on the moon?
Answer: Less than 10 N, because the moon has weaker gravity.
400: What happens to gas particles when they are heated?
Answer: They move faster and expand.
400: What is condensation?
Answer: The change from gas to liquid.
500: Define inertia in relation to matter.
Answer: The tendency of an object to resist changes in its motion.
500: Identify three physical properties of matter.
Answer: Color, density, and melting point.
500: What is weight a measure of?
Answer: The force of gravity on an object.
500: What is the boiling point of water?
Answer: 100°C.
500: What is sublimation?
Answer: The process where a solid changes directly to a gas without becoming a liquid.