Academics · Subject Resources · Free tool for families
The scientific method, one step at a time: a testable question, a hypothesis with a reason, variables with a control, a procedure, a data table that draws its own graph, and a conclusion. A plan check catches the usual mistakes as you type.
Included with the Caveat Academy pass and Whole-school licenses. Or get it in the Study skills kit, $29 for 21 items.
Six steps, one screen each. The plan check on the side updates as you type.
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The plan stays in this browser on this device; nothing is sent anywhere.
The same six problems turn up in most first experiments. Each one has a rule in the plan check.
If the hot water is also a different glass, you cannot tell which one sped things up. Change one thing; the checker flags an independent variable with "and" in it.
Without a normal setting to compare with, "faster" has no meaning. Mark one level as the control or comparison condition.
A variable on the kept-the-same list that is also the thing you change is a contradiction. The checker catches the overlap.
"How well it dissolves" is not a measurement. "Seconds until no crystals are left" is.
One result can be luck. Three trials at each level show whether it holds, and the mean smooths out small slips.
One experiment supports or does not support a hypothesis. It never proves it, and a hypothesis that turns out wrong is still a result.
Most science fair trouble starts in the plan, not the experiment. The organizer walks through the plan in order and checks it as you go, so the experiment can answer the question you asked.
Part of Academics · Subject Resources in the Caveat Suite
Start a planThe kitchen example and its data are illustrative, made up to be realistic for 250 mL of water and a level teaspoon of sugar; your times will differ. Adults should handle hot water and anything sharp or hot. "Control" here means the comparison condition the other levels are measured against; some teachers call it the control group or baseline.