© NTScience.co.uk 2005KS3 Unit 7g - Particles1 Particles

KS3 Unit 7g - Particles 1© NTScience.co.uk 2005

Particles

Q1. What is the smallest particle of a substance

called?

A1. Atom

Q2. What is a group of chemically combined

atoms called?

A2. Molecule

Q3. What do you call an empty volume of space?

A3. Vacuum

Q4. What is the form of energy due to molecular

motion called?

A4. Heat

Q5. What do you call the change of state from

solid to liquid?

A5. Melting

liquid to gas?

A6. Boiling

Q7. What do you call the change of state from gas

to liquid?

A7. Condensation Condense

liquid to solid?

A8. Freezing Freeze

Q9. Why does the water level in a glass near a

warm radiator go down?

A9. Evaporation Evaporate

Q10. What do you call the movement of one

substance through another substance?

A10. Diffusion

Q11. What is the measure of how hot or

cold a substance called?

A11. Temperature

Q12. What is force divided by area called?

A12. Pressure

Well Done!Now check your score

© NTScience.co.uk 2005KS3 Unit 7g - Particles1 Particles

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