What is the name of thing to measure mass?
lever balance
How to return the ping-pong ball to its original form?
Place the ping-pong ball in hot water
why do metal railway tracks have gaps?
to prevent the tracks from bending out of shape when the metal becomes too hot/ prevents accidents caused by derailed trains.
It is an object. It is made from plastic. it used to bring groceries
Plastic bag
What is wind?
Wind is moving air
It is a thing,it needs wind. It used for irigating field, electricity.
Windmill
What is the name this balance?
Dachin balance
How does the force change the movement of this object?
Change the direction
Look at the picture. What is an object made from?
Glass
Is it temporary or permanent change?
Permanent
Why do the charcoal need air?
for burning
Why do the bricks have gaps between them?
prevent the bricks from being pushed out of place and cracking.
What is an object made from?
Wood
If we push the spring with our hand, what force will probably happen?
A force will against or pull away
It is an object. it is made from rubber. it used for swimming.
swimming tube
How does the fireman use water?
To put out the fires
What is the name of state particle above?
Gas Particle
Why does the plant need light energy from the Sun?
To live, grow, and make food
What is the source of water below?
Well
What does the sailboat need to work?
Wind
What will probably happen if our skin gets too much light?
Sunburnt
What is the function of the other source of light below?
To guide ships in the dark and warn ships of danger
What will happen if the place get more sunlight? (air)
The air/ temperature is warmer
Why do living things need air?
Stay alive and make food