Applications of physical and chemical changes Practice exercise 6

Question 1

The diagram shows a metal water tank with reddish-brown rust. What kind of change is shown in the diagram? (1 mark)

Question 2

The diagram shows a metal water tank with reddish-brown rust. What kind of change is shown in the diagram? (1 mark)

Question 3

The diagram shows a metal water tank with reddish-brown rust. What kind of change is shown in the diagram? (1 mark)

Question 4

The diagram shows a metal water tank with reddish-brown rust. What kind of change is shown in the diagram? (1 mark)

Question 5

When dough is placed in an oven and baked into bread, what kind of change has taken place?  (1 mark)

Question 6

When dough is placed in an oven and baked into bread, what kind of change has taken place?  (1 mark)

Question 7

When dough is placed in an oven and baked into bread, what kind of change has taken place? (1 mark)

Question 8

When dough is placed in an oven and baked into bread, what kind of change has taken place? (1 mark)

Question 9

A family uses firewood to cook. After cooking, ash and smoke are left behind as shown below. What type of change happens when the firewood burns?  (1 mark)

Question 10

A family uses firewood to cook. After cooking, ash and smoke are left behind as shown below. What type of change happens when the firewood burns?  (1 mark)

Question 11

A family uses firewood to cook. After cooking, ash and smoke are left behind as shown below. What type of change happens when the firewood burns? (1 mark)

Question 12

A family uses firewood to cook. After cooking, ash and smoke are left behind as shown below. What type of change happens when the firewood burns? (1 mark)

Question 13

A student adds ice to juice. The ice melts and cools the drink. What type of change happens when the ice melts?  (1 mark)

Question 14

A student adds ice to juice. The ice melts and cools the drink. What type of change happens when the ice melts?  (1 mark)

Question 15

A student adds ice to juice. The ice melts and cools the drink. What type of change happens when the ice melts? (1 mark)

Question 16

A student adds ice to juice. The ice melts and cools the drink. What type of change happens when the ice melts? (1 mark)

Question 17

Salty water is heated until steam rises and white salt is left behind. What kind of change is this?  (1 mark)

Question 18

Salty water is heated until steam rises and white salt is left behind. What kind of change is this?  (1 mark)

Question 19

Salty water is heated until steam rises and white salt is left behind. What kind of change is this? (1 mark)

Question 20

Salty water is heated until steam rises and white salt is left behind. What kind of change is this? (1 mark)

Question 21

What change of state occurs when water boils on a jiko?

Question 22

What change of state occurs when water boils on a jiko as shown below?  (1 mark)

Question 23

What change of state occurs when water boils on a jiko as shown below?  (1 mark)

Question 24

What change of state occurs when water boils on a gas as shown below?  (1 mark)

Question 25

What change of state occurs when water boils on a gas as shown below?  (1 mark)

Question 26

What change of state occurs when water boils on a gas as shown below? (1 mark)

Question 27

What change of state occurs when water droplets form on the outside of a cold glass of water?

Question 28

What change of state occurs when water droplets form on the outside of a cold glass of water?   (1 mark)

Question 29

What change of state occurs when water droplets form on the outside of a cold glass of water?   (1 mark)

Question 30

What change of state occurs when water droplets form on the outside of a cold glass of water?   (1 mark)

Question 31

What change of state occurs when water droplets form on the outside of a cold glass of water? (1 mark)

Question 32

What change of state happens when cooking oil is left to cool and becomes solid?

Question 33

What change of state happens when cooking oil is left to cool and becomes solid?    (1mark)

Question 34

What change of state happens when cooking oil is left to cool and becomes solid?    (1mark)

Question 35

What change of state happens when cooking oil is left to cool and becomes solid? (1mark)

Question 36

What change of state occurs when ice cubes are added to a glass of mango juice and start melting?

Question 37

What change of state occurs when ice cubes are added to a glass of mango juice and start melting?   (1 mark)

Question 38

What change of state occurs when ice cubes are added to a glass of mango juice and start melting?   (1 mark)

Question 39

What change of state occurs when ice cubes are added to a glass of mango juice and start melting? (1 mark)

Question 40

What change of state occurs when wax in a candle melts due to heat?

Question 41

What change of state occurs when wax in a candle melts due to heat as shown below?   (1mark)

Question 42

What change of state occurs when wax in a candle melts due to heat as shown below?   (1mark)

Question 43

What change of state occurs when wax in a candle melts due to heat as shown below?   (1mark)

Question 44

What change of state occurs when wax in a candle melts due to heat as shown below? (1mark)

Quiz Questions (44 questions)