What is Convection?
What is convection?
Heat transfer through air or liquid
What is conduction?
Heat transfer from one object to another through touch
What is radiation?
Heat transfer through invisible waves
What is the movement of energy from one object to another?
Heat
Standing on the beach, I felt the sea breeze blowing from the ocean. This movement of air is known as __________
Convection
What is an example of convection?
Answers may vary:
-Steam from hot coffee
-Pot of boiling water
-Hot air balloon
-Breeze at the beach
What is an example of conduction?
Answers may vary:
- frying an egg on a pan
- taking a bath
- snuggling your dog
What is an example of radiation?
Answers may vary:
-Heat from the sun
-Standing by a fire
-Making toast in a toaster
-Heating food in the microwave
Objects are made of ___________ that move in an object.
Molecules
The sun was shining all day. The sand became very hot. This type of heat transfer is known as _________
What word describes the pattern of how air heats and cools which causes it to move in a CIRCLE?
Circulate
Moving from one object to another
What is the word meaning unable to see something?
Invisible
When objects are colder, the molecules move _________ (slow or fast)
Slow
Ouch! The sand was very hot and burning my feet as I walk across it with bare feet. The heat transfer happening in this situation is called __________
Conduction
What are the examples of convection? Choose ALL:
1. Heater blowing warm air
2. Walking on hot sand at the beach
3. Cuddling with your warm dog
4. Smoke rising from a campfire
5. Steam rising from a coffee mug
6. Frying an egg
1. Heater blowing warm air
4. Smoke rising from a campfire
5. Steam rising from a coffee mug
True or False: The spoon in your soup gets hot by convection?
False
What are the examples of convection? Choose ALL:
1. Light bulb giving off heat
2. Cooking pancakes in a pan
3. Cuddling with your warm dog
4. Smoke rising from a campfire
5. Feeling heat while standing by a campfire
6. Sun heating a car
1. Light bulb giving off heat
5. Feeling heat while standing by a campfire
6. Sun heating a car
When objects are hotter, the molecules move _______ (fast or slow)
Fast
My brother cooked his frozen dinner in the microwave. This type of heat transfer is _________
Radiation
Draw an example of convection
Answers will vary
What are the examples of conduction? Choose ALL:
1. Heater blowing warm air
2. Spoon Heating in a soup bowl
3. Putting your hand on a hot car
4. Standing by a fire
5. Steam rising from a coffee mug
6. Cooking pancakes in a pan
2. Spoon Heating in a soup bowl
3. Putting your hand on a hot car
6. Cooking pancakes in a pan
Draw an example of radiation
Answers will vary
Heat moves from a ______ temperature object to a _____ temperature object.
High to Low
For my birthday, I wanted to ride in a hot air balloon. My mom said that a burner heats the air inside the balloon, and it becomes lighter and rises. This is an example of _________
Convection