Understanding Heat and Temperature

What are some ways people used fire long ago, and why was it helpful?

• To light up the sky, because it was pretty

• To cook food and stay warm, because it was useful

• To scare away animals, because it was loud

• To make music, because it was fun

How have things that use heat, like stoves or heaters, changed over time?

• They have become smaller and less efficient

• They have become larger and more expensive

• They have become safer and more efficient

• They have become more colorful and less useful

Can you name things in your home that make or move heat, like to keep you warm or cook food?

• Refrigerator and fan

• Stove and heater

• Television and radio

• Books and pencils

What does it mean when something feels hot or cold?

• It is changing color

• It is moving faster

• It has a high or low temperature

• It is making noise

Who made the first thermometer, and how have thermometers gotten better since then?

• Galileo, and they have become more accurate

• Newton, and they have become larger

• Einstein, and they have become more colorful

• Curie, and they have become heavier

Why does water boil differently on mountains than at the beach?

• Because of the color of the water

• Because of the air pressure

• Because of the time of day

• Because of the type of pot used

How does the Celsius scale tell us if something is hot or cold?

• By using colors

• By using numbers

• By using sounds

• By using shapes

What is the Kelvin scale, and why is it special for scientists?

• It uses colors, and it's special because it's pretty

• It uses sounds, and it's special because it's loud

• It starts at absolute zero, and it's special because it measures extreme temperatures

• It uses shapes, and it's special because it's unique

Why do we need different thermometers for different places, like for cooking or outside?

• Because they look different

• Because they are made of different materials

• Because they measure different temperature ranges

• Because they are different colors

How does a thermocouple measure heat, and what makes it special?

• It uses light, and it's special because it's bright

• It uses sound, and it's special because it's loud

• It uses two metals, and it's special because it measures a wide range of temperatures

• It uses water, and it's special because it's wet