The picture shows human _____

Inhaled air contains _______ compared to exhaled air.

Choose 3 situation which will give bad effect on human breathing.

Which activity is high rate of breathing?

This is a tadpole. It breathes through __________________

Ali put the head of a grasshopper into the water for 10 minutes. Why grasshopper is still alive?

Choose the invertebrates animals (more than 1 answer)

The tiger is vertebrates. It also can be classify as ________

What material is this object made from?

What is the properties of this object?

What is P and Q?

This is a plastic bottle.What is the basic source for this material?

The picture shows that the plant respond to _______

___________ gas absorbed by plants for the process of photosynthesis.

The process of the plants make their own food is called _____

Photosynthesis is important to human and animals because it ______ and __________.

Which of the following steps can reduce sound pollution?

What are the phenomena of reflection of sound? Tick two answer.( / )

Sound___________ in all directions

Sound is produced by __________________________

Which of the following is not a source of energy?

Electrical energy is converted to ___________ energy in a hair dryer.

The spinning movement of the Earth on its axis is called ______

The movement of the Earth around the Sun is called _____

One complete revolution of Earth around the Sun takes ______

How long does it take the Earth to complete one rotation on its axis?

A seesaw is an example of a

What do you call a machine made up of two or more simple machines?

Which of these tools has gear?

This complex machine has a pulley.

Which tool uses the reflection of light principle?

This phenomena happens because of _____

This periscope uses the principle of _______

Tick ( / ) animals that have two organ breathing.