STATES OF MATTER

Imagine Grace, Ava, and Zoe are on a thrilling adventure to explore the mysteries of different states of matter. They stumble upon a magical rock. They notice that the particles in this solid object are...

• tightly packed like a well-organized army

• loosely bonded and flowing like a river

• free to fly in all directions like birds in the sky

• so hot that the electrons are removed from the nucleus like popcorns popping out of a pan

During a thrilling science experiment, Mia, Anika, and Avery noticed that the particles of a gas in a balloon they had just inflated were...

• packed together like sardines in a can

• loosely bonded and flowing like a river

• free to fly in all directions like birds in the sky

• so hot that the electrons decided to leave the nucleus

Zoe, Mason, and Harper are having a debate. Zoe thinks that only gases can spread out to fill all available space. Is she correct?

• Yes, only gases spread out to fill all available space

• No, gases only take the shape of their container

• No, gases can't be compressed

• No, all of these are qualities of gases

nitrogen makes up about.... of the air

• 70

• 80

• 90

• 60

Anika, Aria, and Avery are having a debate. Anika says that oxygen makes up 20.9% of the air, Aria thinks it's 50%, and Avery believes it's 20%. Who is correct?

• Anika (20.9%)

• Aria (50%)

• Avery (20%)

• None of them

the layer of air that surrounds the Earth is called ...

all matter is made of tiny ......

solids, liquids, gases are three... of matter

which process makes ice cream become liquid on a hot day

• freezing

• melting

• boiling

• cooling

which of the following does not happen when we freeze water?

• it solidifies

• it contracts

• it expands

• it changes state