Make a battery from lemons, a nail and a coin and measure its voltage as you add more lemons.
Build a chemical battery from lemons and measure how the voltage grows with the number of lemons connected in a row.
Time how long sugar takes to dissolve in cold, warm and hot water, then explain what you see.
30 to 45 min · 6 materialsView projectBuild parachutes of different sizes and find out how canopy size changes how long a toy takes to fall.
40 to 60 min · 6 materialsView projectBuild a lightweight paper glider, change its wing or weight, and measure how far each version flies.
40 to 60 min · 6 materialsView projectMake a spinning paper helicopter and test how blade length changes how long it takes to fall.
35 to 55 min · 6 materialsView projectDesign a filter from sand, gravel and cotton and test how well it cleans muddy water.
60 to 90 min · 9 materialsView projectOne partner builds a secret structure and describes it, and the other rebuilds it using only measurements and words.
40 to 60 min · 5 materialsView projectEduVistaHQ.com · Learn • Explore • Grow