Plants use their roots to absorb water and nutrients from this.
dirt/soil
This giant star lights up our day sky and provides Earth with heat.
Sun
Humans and animals inhale this invisible gas to stay alive.
air/oxygen
his is what pulls a ball back down to the ground when you throw it up.
gravity
White and fluffy objects in the sky that carry water and rain are called these.
clouds
This natural satellite glows in the night sky and orbits around Earth.
Moon
This organ in your chest pumps blood through your body every second.
heart
These stick to your fridge and can hold up pictures without tape.
magnets
This colorful arc appears in the sky when sun shines through rain droplets.
rainbow
These tiny, shiny lights twinkle in the night sky.
stars
True or False: Your blood inside your body is blue, and it only turns red when exposed to air.
False Human blood is always red
When you rub your hands together fast, it makes what?
heat
Liquid water freezes and turns into this hard, cold solid at 32°F (0°C)
ice
Known as the "Red Planet," this is the fourth planet from the Sun
mars
this organ inside your head helps you think, feel, and control your movement.
brain
This comes out of the wall outlet to turn on your TV and lamp
electricity
Giant opening in a mountain that can spew hot lava, ash, and gases
volcano
This ringed planet is the second-largest in our solar system.
Saturn
His hard structure, made of 206 bones, holds your body up and protects your organs.
skeleton
When you talk, sing, or clap, you make what?
sound