Heat Sources 🌞
Name two sources of heat that are not the Sun.
Fire, Stove, Candle, Heater
What happens to a cup of tea if you leave it outside in winter? Why?
It will get cold because heat moves from the warm tea to the cold air
What happens if you leave a black t-shirt and a white t-shirt under the Sun? Which will be warmer? Why?
The black t-shirt will be warmer because dark colors absorb more heat.
Why do people wear hats in summer?
To protect their heads from heat and sunlight.
What will happen to butter if you leave it outside in the Sun?
It will melt because heat makes things warm
What would happen if there was no heat from the Sun? Why?
Everything would be cold, plants would not grow, and life would not survive
You touch a metal spoon in hot soup. How does the heat move?
Heat moves from the hot soup to the cold spoon, making the spoon warm
If you want to stay cool, what color clothes should you wear? Why?
Light colors, because they reflect heat instead of absorbing it.
Why do we use hot water to clean dishes?
Hot water helps remove grease and dirt faster.
Why does your body feel warmer after running or jumping?
Your body produces heat when you move.
Which gives off more heat: a fire or a flashlight? Why?
Fire gives off more heat because it produces heat energy, while a flashlight only gives light
If you wrap a warm potato in a towel, will it stay warm longer? Why?
Yes, because the towel keeps the heat inside and stops it from moving out quickly.
What would happen if you covered a bottle of cold water with black paper in the Sun?
The water would warm up faster because black paper absorbs heat
If you touch a car that has been in the Sun all day, how will it feel? Why?
Hot, because the car absorbs heat from the sun
If you touch two cups, one metal and one plastic, which one will feel colder? Why?
The metal cup, because metal transfers heat away from your hand faster.
Why does a heater warm a room but a fan does not?
A heater gives off heat energy, while a fan moves air without making it warmer.
What will happen if you put an ice cube on a hot plate? Why?
It will melt because heat moves from the hot plate to the cold ice cube.
Why do some cars have shiny covers on their windows in summer?
To reflect sunlight and keep the car cooler.
Why do we need ovens to bake cakes instead of fans?
Ovens give off heat, which cooks the cake, while fans only move air.
What happens to water inside a glass if you leave it under the Sun for one hour? Why?
The water will get warmer because heat moves from the Sun to the water.
Imagine you're in the desert at night. Will you feel warm or cold? Why?
Cold, because the Sun is gone, and the desert loses its heat at night.
Why does a jacket keep you warm on a cold day?
The jacket traps your body heat and stops it from escaping.
If you sit on a metal chair and a wooden chair on a sunny day, which one will feel warmer? Why?
The metal chair, because metal absorbs and transfers heat faster than wood.
How does heat help us when we are sick?
Warm drinks, hot water bottles, and heaters help us feel better and relax our muscles.
Imagine you are on a picnic. You want to keep your water cold. What would you do? Why?
Put the bottle in a cooler or wrap it with a towel to stop heat from moving inside.