Which thermometer has the coldest temperature?
A
C
B
D
What is this and what does it do?
It's a kettle. It heats up water for tea/coffee or for cooking.
What happens when you rub your hands together?
They feel cool.
They feel fuzzy.
They feel warm.
They feel itchy.
Look around. What can you see in the classroom that is producing heat?
the computer/the projector/light bulbs/cellphone/students ...
What do we use to measure temperature?
A thermometer.
_________________ tells us how hot something is.
Temperature
Weather
The Sun
Numbers
Heat is ____________ that makes things hot.
temperature
gas
fire
energy
_________________ warm up quickly in the sun.
Dark-colored things
Light-colored things
What is the hottest thing you can think of?
Lightning!
True or False: The heat from the sun warms the land, air, and water all around us.
FALSE
TRUE
What is it called when heat turns a liquid into a gas?
EVAPORATING/EVAPORATION
What is happening to the ice cream?
It's melting.
What is the sun made of?
very, very hot gases
very, very hot liquids
very, very hot solids
What is happening to the man?
He's melting.
What is it called when heat turns a solid into a liquid?
MELTING
Which t-shirt will get hotter quicker?
the black t-shirt
the white t-shirt
What is happening to the liquid in the cup?
The liquid is evaporating.
What is this and what does it do?
It's an iron. It heats up and smooths out wrinkles in clothes.
What is happening to the snowman?
It's melting.
What is this and what does it do?
It's a toaster. It heats up bread and makes it hard and crispy.