Convection currents

What you do:

Observe how hot and cold fluids move past on another with this fun and colorful activity!

What you need:

Presentation

Worksheet

Blue ice cubes (freeze water and blue food coloring, using big whiskey-sized ice cubes works best)

Red food coloring

Water pitcher

Hot water source

Glass dish for mixing (1 per group)

Example video

Edible Model of the Sun

url

What You Need:

  • Plain sugar cookies (base of the sun)
  • Plate to work on
  • Plastic knives
  • Frosting (surface)
  • Short pieces of twizzler strips (prominences)
  • Yellow and red sprinkles (granular appearance of surface
  • Mini chocolate chips (sun spots)

 
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Solar System Orbits

What You Need:

  • Glass bows with lids
  • Marbles of different sizes
  • Yellow construction paper
  • Scissors
  • Tape

Scale Model of the Solar System


Adapted from http://www.exploratorium.edu/ronh/solar_system/

What You Need:

  • a yoga ball (the sun)
  • other sized balls to represent planets
  • planet size/distance calculations

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Solar Still

What You Need:

  • a wide plastic basin
  • sand
  • a smaller cup for collecting the clean water
  • a large piece of transparent plastic, plastic wrap can work
  • duct tape to hold plastic in place
  • a stone
  • salt (optional)

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