Matter Kerboodle Page-68-84

Question 1

Elements

Answer 1

Are substances that contain only one type of atom. Every material, and everything in the Universe, is made up of one or more elements.

Question 2

Chemical symbol

Answer 2

This is the one- or two-letter code for the element. Scientists all over the world use the same chemical symbols, no matter what language they speak or write in.

Question 3

Aluminium

Answer 3

Al

Question 4

Bromine

Answer 4

Br

Question 5

Carbon

Answer 5

C

Question 6

Chlorine

Answer 6

Cl

Question 7

Copper

Answer 7

Cu

Question 8

Gold

Answer 8

Au

Question 9

Hydrogen

Answer 9

H

Question 10

Iodine

Answer 10

I

Question 11

Iron

Answer 11

Fe

Question 12

Magnesium

Answer 12

Mg

Question 13

Nitrogen

Answer 13

N

Question 14

Oxygen

Answer 14

O. A gas at room temperature.

Question 15

Potassium

Answer 15

K

Question 16

Sodium

Answer 16

Na

Question 17

Sulfur

Answer 17

S

Question 18

Tungsten

Answer 18

W

Question 19

Zinc

Answer 19

Zn

Question 20

Water

Answer 20

Is made up of hydrogen and oxygen. It is a compound

Question 21

Compound

Answer 21

A compound is a pure substance made up of atoms of two or more elements.

Question 22

Hydrogen

Answer 22

A gas at room temperature. Mixed with air, and ignited with a spark, it explodes. Hydrogen atoms go around in pairs.

Question 23

Molecules

Answer 23

Is a group of two or more atoms strongly joined together.

Question 24

Carbon monoxide

Answer 24

It consists of carbon and oxygen.

Question 25

Aluminium and oxygen

Answer 25

Aluminium oxide

Question 26

Zinc and oxygen

Answer 26

Zinc oxide

Question 27

Chemical formula

Answer 27

Shows the elements presents in a compound. It also shows the relative number of atoms of each element that are in the compound.

Question 28

Polymer

Answer 28

Is a substance with very long molecules. A polymer molecules has identical groups of atoms, repeated many times.