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Energy - Hot And Cold
If you're going outside in the cold it's a good idea to wrap up warm!

Energy - Hot And Cold

Some things feel hot, others feel cold. Learn how to spot safe temperatures, protect your skin, and choose the right materials for warm and chilly objects.

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Fascinating Fact:

Do not touch very hot. Ovens, kettles, irons, and hobs can burn skin. Look, do not touch.

In KS1 Science, children explore hot and cold objects around the home and school. They learn to compare temperatures, notice which materials heat up quickly, and follow rules to avoid burns and chills.

  • Temperature: How hot or cold something is.
  • Conductor: A material, like metal, that lets heat move through it easily.
  • Insulator: A material, like wood or cloth, that slows heat moving through it.
How do you explain hot and cold to KS1 children?

Explain that hot things have more heat energy and can burn, while cold things have less heat energy and can feel freezing. Use safe objects, like warm water and ice, to compare.

Which household items can be dangerously hot for children?

Very hot items include ovens, hobs, kettles, irons, radiators and hot drinks. Children should look, stand back and always ask an adult before going near hot objects.

What KS1 activities help children learn about hot and cold safely?

Adults can use sorting cards, supervised warm and cold water, and comparing metal and plastic spoons to show temperature differences, always reminding children not to touch real hot surfaces.

1 .
This is a bonfire. Why is the bonfire hot?
Because the sun is shining
Because it is a yellow colour
Because the wood is burning
Because the wood is melting
Burning produces a lot of heat
2 .
Holly and Beth are playing in the snow. It is cold. Before they went out, their Mum told them to:
Eat some sweets
Get wet through
Wrap up warm
Fall out among themselves
How have Holly and Beth wrapped up to stay warm?
3 .
Tom’s Mum opens the fridge door. She says it is:
Cooler inside the fridge than outside the fridge
Cooler outside the fridge than inside the fridge
Warmer inside the fridge than outside the fridge
Just as warm inside the fridge as outside the fridge
Fridges keep food cool. Freezers are very cold. They freeze food
4 .
Ellie’s house has central heating. The rooms in the house are heated by radiators.

Ellie’s Mum says, ‘It is too warm.’ She turns down the central heating.

What does Ellie’s Mum use to turn down the central heating?
A thermometer
A thermostat
A radiator
A boiler
Do you have a thermostat on the wall of your classroom at school?
5 .
This stove is very hot. It has a lot of ____ energy.
Sound
Heat
Electrical
Magnetic
Be careful! Never touch a hot stove
6 .
What do we call how hot or cold it is?
The weather
The temperature
The pressure
The height
Temperature is measured in degrees centigrade (oC)
7 .
The picture shows a pond in a park. How do you know the water in the pond is very cold?
Because the water has frozen
Because there are no leaves on the trees
Because the sun is shining
Because the water has melted
Water freezes and turns into ice. Water is a liquid. Ice is a solid
8 .
How do you know the water is very hot?
Because you can see through the dish
Because the dish is transparent
Because there is no lid on the dish
Because the water is boiling
Remember - never touch pans or dishes on cookers
9 .
What do we use to measure temperature?
A ruler
A thermometer
A compass
A calculator
Have you ever used a thermometer?
10 .
We can sense if we are hot or cold. Which part of us senses hot or cold?
Our eyes
Our hair
Our skin
Our ears
If we are too cold, we start shivering
Author:  David Bland (Former Physics Teacher, KS1 Science & Geography Quiz Writer)

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