Light Energy
What is light energy?
Form of energy that lets you see
What is sound energy?
form of energy that you can hear
What is thermal energy?
form of energy that makes things warm or hot
What is the main source of light energy on Earth?
The Sun
How does sound move?
Through waves or vibrations
What is the main source of thermal energy on Earth?
The Sun
How do people use light to communicate?
Traffic lights, signs, signals
What do people use sound for everyday?
Talking, listening, and sharing information --> communication
What can you use thermal energy for?
To heat and cook food - stove
To make things warm - microwave
To stay warm - fire
What kind of screens give off light energy?
TV, phone, computer screens
What sound might you hear at school that gives you information?
What keeps things cold by removing their thermal energy?
Why is light energy important to people?
It helps us see, stay safe, and live our lives
How does sound help people stay safe?
It warns them of danger
ex: alarms or sirens
What happens when something gains thermal energy? What happens when something loses thermal energy?
Gains - Gets Warmer
Loses - Gets Cooler