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COMBINED SCIENCE 1RO

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

FREEZING IS THE CHANGE OF STATE OF

a)

SOLID TO LIQUID

b)

LIQUID TO GAS

c)

LIQUID TO SOLID

d)

GAS TO LIQUID

2.

THE MELTING POINT IS THE NAME OF THE TEMPERATURE IN WHICH...

a)

A SOLID CHANGE TO LIQUID

b)

A LIQUID CHANGE TO GAS

c)

A LIQUID CHANGE TO SOLID

d)

A GAS CHANGE TO LIQUID

3.
a)

THE IMAGE CORRESPONDS TO A...

b)

LIQUID

c)

GAS

d)

SOLID

4.

WHICH SUB-ATOMIC PARTICLE HAS THE SMALLEST RELATIVE MASS?

a)

PROTON

b)

ELECTRON

c)

NEUTRON

5.

A MIXTURE IS...

a)

A SET OF ATOMS

b)

A SET OF MIXTURE

c)

A SET OF COMPOUNDS

6.

WHAT IS THE FORMULA OF THE COMPOUND?

a)

C3 H8 O2

b)

C4 H8 O

c)

C4 H8 O2

d)

C3 H7 O2

7.

Which process is a physical change?

a)

the melting of ice

b)

The reaction of sodium with water

c)

The combustion of methane

8.

What is the formula of this compound?

a)

C5 H11 O

b)

C5 H11 O2

c)

C5 H12 O

d)

C5 H12

9.

How many protons does the lithium atom have?

a)

6

b)

4

c)

3

d)

8

10.

How many neutrons does the Magnesium atom have?

a)

24

b)

12

c)

10

d)

14