Top 10 science fair projects that cost nothing
Every project on this list is one of Peabody's own, free, with the hypothesis, steps, results table and board plan on its page.
How it's ordered: Free projects (nothing to buy), the fewest things to gather first.
The ten projects
- 🎾 Which floor makes a ball bounce highest? (ours): 1st–5th grade · 1 day of testing · free. When the ball hits the floor it squashes, then springs back and pushes itself up again.
- 🏀 Does a ball dropped from higher bounce higher? (ours): 1st–5th grade · 1 day of testing · free. A ball speeds up as it falls, so a ball dropped from higher hits the floor harder and squashes more.
- 🏀 Which ball bounces the most times? (ours): kindergarten · 1 day of testing · free. A bouncy ball squashes when it hits the floor and then springs back, and the spring pushes it up again.
- 🌞 When is my shadow longest: morning, lunch or afternoon? (ours): kindergarten · 3 days of testing · free. Your shadow is the patch where your body blocks the sunlight.
- ✈️ Which wing shape flies farthest? (ours): 3rd–8th grade · 1 day of testing · free. A wing pushes air down, and the air pushes the wing up: that push is called lift.
- 📄 Does crumpled paper fall faster than flat paper? (ours): 1st–4th grade · 1 day of testing · free. Air pushes up on anything that falls.
- 🌤️ How does a shadow change through the day? (ours): 1st–4th grade · 1 day of testing · free. A shadow is the dark patch where the bottle blocks the sunlight.
- 🥄 Does a bigger spoon ring longer when it hangs on a string? (ours): 2nd–6th grade · 1 day of testing · free. When the spoon taps the table it shakes, and the shaking runs up the string straight to your ears, so it sounds louder and deeper than it does through the air.
- ⛵ Which boat shape carries the most pennies? (ours): 1st–5th grade · 1 day of testing · free. A boat floats when it pushes enough water out of the way to hold up its weight.
- ⛵ Sink or float: does a bigger foil boat carry more blocks? (ours): kindergarten · 1 day of testing · free. A boat floats when it pushes enough water out of the way to hold up its load.
- science fair projects for 2nd graders
- science fair projects for 4th graders
- science fair projects for 7th and 8th graders
- science fair projects you can finish in a weekend
- science fair projects about plants and weather
- free science fair project sites
- mistakes on a science fair board
- things science fair judges ask
- science fair rules every school shares
- free graph makers for a science fair
- free science fair judging tools
- science fair projects for kindergarten
- science fair board ideas
- science fair kits, honestly priced (with the free swap for each)
👨👩👧 For grown-ups and teachers: how much to help, the safety rules, and running a school fair. Science fair v0.16.1 · Checked .