Energy
Second Grade
Mrs. Bain
Where does energy
come from?
• Energy comes from light.
• Energy comes from heat.
• Energy comes from motion.
What else do you know
about energy?
• Energy can not be created or
destroyed.
• Energy can only be transferred
from one type to another.
• The light from the Sun heats our
Earth.
• Any motion results in heat
energy.
Heat Energy
• Where does heat energy come
from?
• THE SUN
• FIRE
• CHEMICAL REACTIONS
• FRICTION
Rubber band Experiment
• Take one rubber band.
• How does it feel (temperature)?
• Stretch and relax the rubber
band 50 times fast.
• Now does the rubber band feel?
• How can you explain the
change?