Science projects on climate change should be very specific and focus on a single significant aspect of global warming and investigate that aspect thoroughly. Try building a small model greenhouse with simple materials to demonstrate the greenhouse effect. Make a chart showing changing average atmospheric temperatures over time. This type of project is appropriate for elementary grades and older.
Another project on the theme of climate change could track the annual arctic ice melt and compare and contrast the melt over many years to see the changes. This project require no construction skills amd is appropriate for younger children.
The changing frequency and strength of earthquakes in our world is an excellent topic for a science project in the earth sciences. Make a earthquake map showing the location and intensity of earthquakes now, and in past years. Are there more, or fewer earthquakes in recent years? Have active earthquake zones always been located in the same geographical area, or has seismic activity shifted over time? Try making a model or a map of the earth and its fault zones showing change over time. This project is appropriate for elementary grades and up.
Tornadoes and hurricanes are always an exciting subject for a science project. Investigate the frequency of tornadoes, hurricanes and other phenomena for yourself. Create a graphic showing the changes over time. Try making your own tornado in a bottle to demonstrate what happens when hot and cold air come together. This project is comlex and is suitable for junior high school students and older.
Tsunamis are a fascinating topic for a science project on the changing ocean environment. Investigate how tsunamis are created and what effects they have on our man-made environment and on our coastal cities. Try creating a model wave machine with a water tank and investigate the speed and power of waves. Make a slide show showing the destructive power of tsunamis on human habitation. Building a wave tank requires a skill level of junior high school or above.