Do cockroaches have a sense of direction?
First students make careful observations of cockroach anatomy and behavior. Due to the reputation of the cockroach, students find them intriguing subjects of study. Assessing the behavior of these insects in a maze, allows students to decide if the cockroach manifests learning or an inability to learn. The strongest piece of this activity is challenging students to design their own controlled expe
How to make your own comet
In ancient times, people did not understand the objects in the sky, how they moved or what they were. They did not know what a comet was, where it came from, or where it went. A large comet is a spectacular sight and inspired both awe and fear in primitive peoples.
Explain how the tilt of the earth works
Demonstrate that seasons exist because of the tilt of the earth and its impact on the intensity of the sunlight at a given location.
Do you have a blind spot and if so, how can you determine your blind spot?
One of the most dramatic experiments to perform is the demonstration of the blind spot. The blind spot is the area on the retina without receptors that respond to light. Therefore an image that falls on this region will NOT be seen. It is in this region that the optic nerve exits the eye on its way to the brain. To find your blind spot, look at the image below or draw it on a piece of paper:
What does a barometer do? Make your own barometer to demonstrate how it can be used
What is air pressure? Did you know you can make something that will measure air pressure? You can actually do a bit of weather predicting from a simple made-at-home piece of equipment.
What causes a tsunami? Demonstrate this with a model
A Tsunami (Japanese for 'harbour wave') is a wave generated by an undersea earthquake,landslip or volcanic eruption so if you want to demonstrate what causes a tsunami rarher than it effect that it may have then we have to think about simulating an undersea earthquake.
What is "weathering"? Demonstrate how it happens to mountains
When rocks are worn down by water, wind, or other means, that is weathering. Soil is made up of weathered rock particles, so without weathering, there would be no soil. Try the following activities to see how rocks can weather.
What is soil erosion? Demonstrate how it happens
Erosion is the loss of soil from the land. It is a process that is always occuring but it can happen faster if we misuse the land.
How to create an electrostatic charge using a handheld electrophorus
A hand-held electrophorus can produce significant amounts of charge conveniently and repeatedly. It is operated by first frictionally charging a flat insulating plate called a "cake". In Volta's day, the cake was made of shellac/resin mixtures or a carnauba wax film deposited on glass. Nowadays, excellent substitutes are available. TeflonTM, though a bit expensive, is a good choice because it is a
How to build a levitating train using magnets
This is a great demonstration of like poles repelling each other. We have a platform which floats above a pair of magnetic tracks, and can be gently pushed to one end or the other. This is similar in concept to the MAGLEV trains which are being worked on in Germany, Japan and France