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.

What’s inside

The full contents of The Simple Machines Science Fair Workbook: plan, test, show, the working pages and three bonuses

Step 1, The One-Variable Rule: three simple machine experiments, with what to change and what to measure in each

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

Plus a second PDF, worked out for you

Run one of the free calculators first and buy from that page, and this sheet is computed from your own figures. Buy from here and the pack still arrives complete — the sheet simply has no numbers of yours to work from yet.

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$19.00 including any taxes · PDF, 28 pages · instant download, link valid 7 days and 5 downloads.
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