IMO Practice Test: Materials Around Us | Class 1 Science

Question 1 of 6 medium

Why does a leaf float but a stone sinks?

The stone is alive

The leaf is bigger

The leaf is light for its size

Leaves like water

Explanation: Light things for their size float; heavy ones sink.

Question 2 of 6 hard

A property is the way a material feels or behaves. Which is a property?

Being a name

Being a chair

Being a toy

Being hard

Explanation: Hard, soft, rough and smooth are properties of materials.

Question 3 of 6 hard

Why is a water bottle NOT made of paper?

Paper is shiny

Paper is too heavy

Paper is too strong

Paper gets soggy and leaks

Explanation: Paper soaks up water, so it cannot hold water.

Question 4 of 6 medium

Rubber for tyres first comes from a…

Glass factory only

Rubber tree

Stone

Metal mine

Explanation: Rubber comes from the sap of the rubber tree, then people shape it.

Question 5 of 6 hard

A good material for a window must be…

Bumpy

Soft and furry

Smelly

See-through

Explanation: A window needs a see-through material so we get light.

Question 6 of 6 hard

Which list has ONLY natural materials?

Cotton, plastic, stone

Plastic, glass, steel

Wood, plastic, glass

Wood, cotton, stone

Explanation: Wood, cotton and stone all come from nature.

IMO Practice Test — Materials Around Us