TATH G4_SCIENCE REVISION

What is the function of a lamp?

• to turn on a circuit

• 
  to connect components

• to make light

• to power a circuit

How many planets are in our solar system?

• 12

• 8

• 7

• 3

Answer explanation

How long for the Moon to orbit the Earth once?

• 365 days

• 24 hours

• 30 days

• 28 days

How long does it take for the Earth to rotate once?

• 28 days

• 1 day

• 24 hours

• Blue & Yellow choices are correct

How long does it take for the Earth to orbit the Sun?

• 28 days

• 24 hours

• 365 days or 1 year

• 31 days

When are shadows longest during the day?

• morning and evening

• no time

• midday

• midnight

Answer explanation

When are shadows shortest during the day?

• morning and evening

• no time

• midday

• midnight

Answer explanation

Night and day happen because the Earth r________ or s____.

What is the function of a battery?

• to turn on a circuit

• 
  to connect components

• to make light

• to give energy or provide power

What is the function of a switch?

• to complete and break a circuit; to turn on/off circuit

• 
  to connect components

• to make light

• to power a circuit