We install silencers to cars, trucks and motorcyles to muffle the sound from the engines

Which one make high-pitched sound?

Which one makes low-pitched sound?

What’s this?

The sound of jackhammer is not loud.

Fill in the blank:

We can ...... sounds that we don't want to hear.

Fill in the blank

In buildings we use carpets or curtains to ………. noise.

Sometimes the spaces between walls are filled with materials that let noise through.

Some materials can muffle sound well.

2+3=5; 3+2=5. What is the property called?

What is the missing number?

45 + 23 = ?

If I have four numbers 3, 5, 7, 8. What numbers do I use to make 18?

102  $-$  8 = 96

If we partition 930 into parts, we will get…......

300 mm = .............. cm

The two expressions 65 x 10 and

6500 : 10 have the same answer.

33 x 10 = ...............

Round 123 to the nearest tens.

Round 1402 to the nearest hundreds.

What is the definition of a carnivore?

This desert is one of ....... areas in the world.

What dinosaur is this?

Is this a bird or reptile or dinosaur?

Paul thinks Monday is ......... day at school.

Scientists think that dinosaurs look like reptiles because of their scales.

A herbivore eats...........

What do scientists look at to know what dinosaurs ate?

Michael: Have you got any games that we can play?

Jane: ...............................

"Broke open so the baby inside could come out" means.......

An expert is the person .... is good at something

The dinosaur was as heavy as ......