KS3 - Atoms

What is one of the learning objectives mentioned in the document?

• Describe evidence for Dalton's atomic model

• Identify the planets in the solar system

What did Indian and Greek philosophers believe about matter?

• Matter is composed of water and air

• Matter is made up of tiny particles with empty space between

Who were the Greek philosophers mentioned in the document?

• Leucippus and Democritus

• Socrates and Plato

How did philosophers work out their ideas about atoms?

• Through creative thought

• By using advanced technology

What did Dalton collect from marshes for his experiments?

• Gas

• Soil

What is the smallest piece of matter according to Greek philosophers?

• Cells

• Atoms

What did Lavoisier discover about air?

• It included at least two gases.

• It was a single pure substance.

What did Dalton conclude about water in the air?

• It exists as a separate gas.

• It is a solid mixed with air.

What happens when water evaporates according to Dalton?

• It forms a new compound.

• Its particles mix with air particles.

What conclusion did Dalton make about mixtures of gases?

• Particles of different gases form a solid.

• Particles of different gases are not joined together.