Particle Model

Question 1

What’s an atom?

Answer 1

The smallest unit of matter.

Question 2

What’s an element?

Answer 2

A pure substance made up of only one type of atom.

Question 3

What’s a molecule?

Answer 3

A group of atoms attached by chemical bonds.

Question 4

What’s a compound?

Answer 4

A molecule composed of two or more different elements.

Question 5

What’s a property?

Answer 5

Any characteristic of a substance.

Question 6

What’s a physical property? (Name 2 things)

Answer 6

1-Its a property that can be observed or measured without changing the composition of matter
2-the substance is made up of the same molecules

Question 7

Give 3 examples of physical property.

Answer 7

1-Odor
2-Color
3-Density

Question 8

What’s a chemical property? (Name 2 things)

Answer 8

1-It’s a property that describes how two or more substances react with each other
2-The nature of the substance modifies or changes

Question 9

Give 3 examples of chemical property.

Answer 9

1-Flammability
2-Reacts with an acid
3-Resistance to corrosion