Try these simple science experiments in your class. This way children will understand scientific concepts while having fun.

Primary School

Sink or Float	Demonstrate that some things float while others sink	Float Boat	A follow up to 'Sink or Float', the activity has children figuring out that shapes can determine whether something sinks or floats
Craft a Raft	A follow up to 'Float Boat', make your class use their imagination and make a ball of clay float	How does it become bigger?	Convex lenses explained
Disappearing Water	Demonstrate evaporation	Slip Sliding away	A fun experiment on friction. Use this to discuss safety too

Middle School

A fountain and a sprinkler	Show how water pressure changes with depth	Magic Paper	Use this to explain the concept of air pressure and displacement of air
Water movements	Show how water can move through cloth by capillary action. Link this up with a drip irrigation model.	Cohesion - Adhesion	Why does water stick to some materials and not all?
Measuring Turbidity	Not everyone has access to crystal clear water. Learn about turbidity and measure it using samples of water from different sources	Rain Gauge	Make a rain gauge and use it to monitor rainfall in your school. Calculate the amount of rainwater you can harvest on your rooftop
Rain Water Treatment	Demonstrate a basic rainwater filter in class. If students work on a rainwater harvesting project for the school, they can use this principle and make the filter themselves	Water Contains Oxygen	We can't see it, but it sustains aquatic life. This activity shows that water has dissolved oxygen
Water Temperatures at Different Depths	This activity helps students understand the temperature stratification of water bodies. Combine it with the Presentations on 'Aquatic ecosystems'	Propeller boat	Show them how a propellor works
High School
Bubbly paths	How does a film of soap travel between fixed points?	Balancing Act	Can you make a pipe balance at a 45 degree angle? Your class on moments of force can be made very interesting. Check this out.  . For a one minute film on this click here
Water bottle rocket	Have a science class in the playground. Have the children discuss the hows and whys of rocket propulsion. Why do we need to put some water in the bottle during the experiment?	Inertia Bottles	You can give many examples to explain inertia. Try this experiment and let your class discuss the results
Fountain &	Check these links to make a sprinkler with an old water bottle. Discuss Newton’s third law of motion after you do this experiment.  Instructions for making another fountain	sprinkler	Check these links to make a sprinkler with an old water bottle. Discuss Newton’s third law of motion after you do this experiment.
Hydraulic Jack	Science for Std XI and XII can also be fun. Explain basic principles of hydraulics with this simple experiment	Water race	Discuss water pressure with respect to height of a column after you do this simple experiment
Constant flow bottle	Another experiment to discuss water pressure with respect to height of a column	Siphon magic	Water pressure and height again. This time it’s an experiment on siphoning liquids
Fun fountain	Yet another experiment on water pressure and height of a column	Daredevil diver	Teaching Archimedes’ Principle? Try these experiments to explain concepts better
Bottle Barometer	When you are discussing barometers, you can show them one from your science lab, or make this barometer in the class	Bubbly bottles	Which principle can you explain using this experiment?
Fibre optics	Explain movement of light through a tube and total internal reflection through these simple experiments	Rain gauge	Using a plastic throw away water bottle you can make a very simple rain gauge
Simple tornado	Have a stormy session in class by making these simple tornadoes		Pretty convection currents
Surface tension	No tension to demo