The Simple Machines Science Fair Workbook
The LeverLab plan from a question to a display board in four weeks
A simple machines project can be a model that shows how a lever works, or an experiment that finds something out. This workbook makes it the second kind. Our free calculators predict what a perfect machine would do, and two of them ask for numbers nobody knows: the pulley calculator wants an efficiency, the ramp calculator a friction coefficient. The experiment measures them. Week 1 chooses one question, predicts the answer with the calculator and builds a safe rig. Week 2 takes three trials of every reading and works out efficiency or friction. Weeks 3 and 4 draw one graph, write an honest conclusion and build the board, with a thirty-second answer for the judge. Worked examples throughout, clearly labelled as example data. For students in about grades 5 to 9, with an adult helping on anything that hangs. With your purchase comes a personalised sheet with the prediction column for your own rig, from the values you enter in the LeverLab calculators.
Look inside
Two full pages from the workbook, exactly as printed. Click either to read it at full size before you decide.
What is in it
- Choosing one question: a real experiment, not a model
- Predicting the ideal with the LeverLab calculators
- A safe rig: small loads, and nothing under a hanging weight
- Three trials of every reading, with averages and spread
- Efficiency from spring-scale readings, and a ramp's friction
- One graph, an honest conclusion and a display board
- Data table, calculation sheet and board layout
- Bonuses: a one-week quickstart, judge questions and a formula card
- A personalised sheet: predictions for your own rig
- ✓ 28 printable pages
- ✓ 9 sections, worksheets and templates
- ✓ A second PDF worked out from the numbers you enter
- ✓ No account needed, just an email address
- ✓ Instant download; link valid 7 days
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The workbook complements the free simple machine calculators. They predict the ideal; the workbook turns measuring the real thing into an experiment a judge can follow.