Energy All Around Us
You are holding a ball in the air. What happens to its energy when you let go?
What is it changes from potential energy to kinetic energy?
Why does a metal spoon in hot soup feel hot, but a plastic spoon does not?
What is because metal moves heat better than plastic?
Why does a puddle disappear on a hot day?
What is because the Sun heats the water, making it evaporate?
When you turn on a lamp, what happens to the energy?
What is electrical energy changes into light and heat?
A student wants to see which metal spoon gets hot the fastest in hot water. What should they measure?
What is the temperature of each spoon?
Two kids are running at the same speed. One is bigger than the other. Who has more energy and why?
What is the bigger kid because more mass means more energy?
Why does warm air rise and cool air sink?
What is warm air is lighter, and cool air is heavier?
Why do clouds form after water evaporates?
What is because the air cools, and water turns back into liquid (condensation)?
A person jumps on a trampoline. What happens to their energy?
What is stored energy turns into moving energy, then back into stored energy?
A chef is testing three pans to see which one cooks food the fastest. What is the independent variable?
What is the type of pan?
A book is sitting on a table. Does it have energy? Why or why not?
What is yes, it has stored energy (potential energy) because it can fall?
A tile floor feels colder than a carpet, even when they are the same temperature. Why?
What is because tile takes heat away from your feet faster than carpet?
How does gravity move water in the water cycle?
What is it makes rain fall and water flow downhill?
When you eat food, what happens to the energy in it?
What is it becomes energy for movement and body heat?
A scientist is testing different coat materials to see which keeps people the warmest. What is the dependent variable?
What is how much heat the coat keeps in?
A stretched rubber band and a moving car both have energy. How are they different?
What is the rubber band has stored energy, and the car has moving energy?
You hold an ice cube in your hand. Why does it feel cold?
What is because heat moves from your hand into the ice?
Farmers use big fans to stop frost from forming on crops. How does this help?
What is because moving air stops cold air from staying near the ground?
A wind turbine spins when the wind blows. What energy changes happen?
What is wind energy turns into movement, then into electricity?
Two cups have the same temperature, but one has twice as much water. Which has more heat energy?
What is the bigger cup because it has more water?
Two people climb a ladder. One is heavier. Who has more energy and why?
What is the heavier person because more mass means more gravitational energy?
Why is the attic of a house hotter than the basement?
What is because warm air rises?
Why does sweating help cool you down on a hot day?
What is because sweat takes heat away from your body when it evaporates?
Why do your hands feel warm when you rub them together?
What is moving energy turns into heat?
A scientist is testing a sous-vide machine to keep food warm. Why does the machine need to keep adding heat?
What is because heat is always moving out into the air?