Three states of matter.

• Light, ice, and oxygen.

• Mercury, oxygen, electricity.

• Soda, rocks, molecules.

• Liquid, solid, and gas.

Element contains a substance whose atoms all have different number of protons.

• Yes, that's real.

• No, it's not correct.

• Elements, what's that?

• Give me information.

Friction contains a force that keeps _________ from moving smoothly against each other.

• Three things

• Two things

• Five things

• Ten things

This is an example of magnetism.

• Friction

• Elements

• Rare earth metals

• Circuit

The light

• It is the ability to do work.

• It is the force exerted by magnets.

• It is visible to the human eye.

• It is the most important chemistry reference.

Chemical symbol of Mercury.

• Hg

• Hf

• H2O

• Hi

Elements, in the periodic table of elements are arranged:

• Right to left and top to bottom.

• Left to right and bottom to top.

• They do not have an arrangement.

• There is an another arrangement.

Example of electromagnetism.

• Cobalt

• Aluminum

• Radio

• Nickel

Electromagnetism is:

• the force exerted by magnets when they attract or re

• a substance whose atoms all have the same number of protons.

• the force exerted by magnets when they attract or re

• An attraction between particles which is defined as created by electricity.

The most important chemistry reference.

• The elements.

• The atomic numbers.

• The chemical symbol.

• The periodic table of elements.