Chemistry:

*Make your own pH paper

*What makes ice melt fastest?

*What affects the rate of evaporation of water?

*The effect of fertilizers on plant growth

Physics:

*How does temperature affect the movement of water?

*Do different colors absorb heat differently?

*Building a roller coaster

*What's the fastest way to cool a soda?

*How the strength of a magnet varies with temperature

*The physics of sound

Energy & Power:

*Veggie Power! Making batteries from fruits and vegetables

*Batteries: The shocking truth

*A cool way to make electricity: solar cell power output vs. temperature

*A bright idea for saving energy

 Biology:

*Modeling an animal and a plant cell

Earth and Space

*Building a volcano (Cynder Cone Volcanoes, Shield Volcanoes, and  Composite Volcanoes)

*Modeling the main types of plate boundaries (Convergent Boundary, Divergent Boundary, and Transform Boundary)