CHEMICAL SCIENCE -Yr8 Revision

Question 1

Atom

Answer 1

The smallest particle in an element. It contains electrons, protons and neutrons

Question 2

Compound

Answer 2

A compound is when you have two or more different elements joined (bond) together

Question 3

Molecule

Answer 3

A molecule is when you have two or more atoms joined together (they may be the same element, they may not)

Question 4

Matter

Answer 4

Matter is everything around you that takes up space and has mass.

Question 5

Density

Answer 5

Density is how much massifs packed into a measured volume

Question 6

Mass

Answer 6

A large body with matter but with no definite shape

Question 7

Weight

Answer 7

Weight is how much a person or an object is

Question 8

Volume

Answer 8

Volume, the amount of space that a substance or object occupies, or that is enclosed within a container.

Question 9

Boiling Point

Answer 9

Boiling Point is the temperature that a liquid boils at and turns into vapour

Question 10

Physical Change

Answer 10

Physical Change is when something changes but it is still the same particles at the end

Question 11

Chemical Change

Answer 11

Chemical Change is when sow thing changes but in a different form

Question 12

Element

Answer 12

An element is the simplest type of substance