STANDARD 4-Science revision

Tick four basic sources of material

• Petroleum

• Animals

• Cotton

• Plants

• Rocks

Four objects is placed in aquarium filled with water. Which materials is floating ?

• coin

• plastic bag

• rock

• straw

What is the characteristic of metal spoon ?

• able to absorb water

• act as conductor in electric circuit

• stretchtable

• able to absorb heat

What happened if eraser is connected to electric circuit ?

• bull will light up

• bulb will not light up

What is things that is suitable to wipe the wet floor ?

• plastic bag

• towel

• paper

• cotton cloth

What is gravitational force ?

• It is a pushing force that stay all object on Earth

• It is a pulling force that attract all object to the centre of earth

What is the effect of gravitational force ?

• 
• 

What happened after the cat jump and there is no gravity ? Write your answer

Which one is true about the rotation of earth ? (answer is more than one)

• it takes 24 hours

• it takes 2 days

• it rotates anticlockwise direction

• it takes 365 days

Effects of the Earth's rotation on its axis to our daily live include ? (answer is more than one)

• Occurrence of day and night

• Position of the Sun changed

• Our day time will be longer

• Changed in length and direction of shadow