What is Heat?
Heat is a kind of Energy like Heat and Light
Can you see Heat? Can you feel it?
No, we cannot see it, but we can feel it
Can we make Heat? Is our body warm?
Yes, we make heat. We are Warm-Blooded Creatures
Can Animals make heat?
Not all Animals can make heat. Some are Cold-Blooded creatures - Reptiles
eg - Lizards, Crocodile, Frog etc
How do Cold blooded creatures like Lizards and Crocodile keep warm?
They rely on the Sun's heat to keep them warm.
Where do we get heat from?
The Main source of heat on this planet is the Sun
What is a Thermometer?
It is an instrument that tells us how hot or cold something is.
What is our Normal body temperature?
Around 98 degrees C
Is the Sun the only source of heat for us?
No.There is
1} Campfire -wood
2} Barbecue - charcoal
3} Stove at home - gas
What are the three fuels from Campfire, Barbecue & our Stove, that we burn, that gives us energy?
Wood, Charcoal & Gas
Things that use Electricity also give out heat. Give some examples.
Iron, Hair dryer, TV , Computer
What is Friction?
Friction is a force that slows down things
Give 2 examples of Friction.
1} Striking a Match
2} Rubbing 2 stones/ 2 sticks
How does friction produce heat?
By rubbing two things together
How can heat change things?
We use heat to cook our food
