Science Elements and Compounds Test

Question 1

What is an atom made of?

Answer 1

electrons (-), neutrons (no charge), protons (+)

Question 2

What is the appearance of oxygen?

Answer 2

colourless gas

Question 3

What is the appearance of hydrogen?

Answer 3

colourless gas

Question 4

What is the appearance of chlorine?

Answer 4

green gas

Question 5

What is the appearance of aluminum?

Answer 5

shiny, light grey

Question 6

What is the appearance of copper?

Answer 6

shiny, brown

Question 7

What is the appearance of nickel?

Answer 7

shiny, light grey

Question 8

What is the appearance of lead?

Answer 8

dull, grey

Question 9

What is the appearance of zinc?

Answer 9

dull, grey

Question 10

What is the appearance of mercury?

Answer 10

shiny, grey

Question 11

What is the appearance of sulphur?

Answer 11

dull, yellow

Question 12

Which substances out of: oxygen, hydrogen, chlorine, aluminium, iron, copper, nickel, lead, zinc, mercury and sulphur can conduct electricity?

Answer 12

iron, nickel, lead, zinc, and carbon

Question 13

Which substances out of: oxygen, hydrogen, chlorine, aluminium, iron, copper, nickel, lead, zinc, mercury and sulphur are magnetic?

Answer 13

iron and nickel

Question 14

What does H stand for?

Answer 14

Hydrogen

Question 15

What does Li stand for?

Answer 15

Lithium

Question 16

What does Be stand for?

Answer 16

Bervillium

Question 17

What does O2 / O stand for?

Answer 17

Oxygen

Question 18

What is an atom?

Answer 18

the smallest particle of an element that can exist

Question 19

What is a compound?

Answer 19

two or more atoms chemically bonded together

Question 20

What is an element?

Answer 20

substances that contain only one type of atom

Question 21

What is a compound? (other answer)

Answer 21

substances made up of two or more different chemical elements combined in a fixed ratio

Question 22

What happens when you add limewater to carbon dioxide?

Answer 22

the liquid becomes cloudy