The hypothesis is that driving at 90 km/h (about 55 mph) produces better fuel economy than driving at 11 km/h (about 70 mph).

You will need five drivers and five types of cars, and 250 liters of gasoline (about 65 gallons). The drivers will drive the cars at a constant speed of 90 km/h and 110 km/h, and record the distance traveled on 20 liters (or 5 gallons) of gasoline.

You will need five drivers, five types of cars, and 250 liters of gasoline (about 65 gallons).

The results of the experiment showed that all of the cars were able to travel for longer distances (of about 20% to 30%) when driven at 90 km/h compared to when the cars travelled at speeds of 110km/h.

This science project is interesting because it shows how much fuel can be saved by driving at a slower speed. It also shows how different cars can have different fuel efficiencies.

Variations: Repeat the science project, this time, using vehicles with higher engine capacities. The science project experiment can be repeated using different grades of gasoline.

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!