Science Review

What part of the atom is the arrow pointing to?

• nucleus
• proton
• electron shell
• electron

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

The subatomic particle found outside the nucleus is the

• atom
• electron
• proton
• neutron

Which of the following changes liquid water into gas?

• boiling
• freezing 
• melting

When a stick of butter melts it changes from a...

• solid to gas
• gas to solid
• solid to liquid

Which state of matter does this picture show?

• Solid

• Liquid

• Gas

What state of matter does this picture show?

• Solid

• Liquid

• Gas

Which state of matter does this picture show?

• Solid

• Liquid

• Gas