Light
name an artificial light source
flashlight, lamp, lights
These make sound when they move back and forth quickly.
vibrations
Earth is shaped like this.
a sphere
A seesaw is an example of this simple machine.
a lever
This is where a chicken's life begins.
name a natural light source
sun
This is the line where the sky appears to meet the land or water.
horizon
This simple machine is a wheel with a rod through the middle.
wheel and axle
A baby hen or rooster is called this.
chick
A dark shape made when something blocks light.
a shadow
Scientists look for these when they study the sky.
patterns
After a chick hatches, it needs what to grow?
food, water, shelter
We can use patterns to make these about what we will see tomorrow.
predictions
Sai and his grandma saw different skies at the same time because they were in different places on Earth, and Earth is doing this.
spinning
Put these in order: egg, adult chicken, chick.
egg, chick, adult chicken (hen or rooster)