A hands-on investigation with procedure, data collection, and analysis questions.
89 available · refine in the catalog
Grade 2 (6) Grade 3 (6) Grade 4 (5) Grade 5 (6) Grade 6 (12) Grade 7 (11) Grade 8 (11) Grade 9 (9) Grade 10 (7) Grade 11 (9) Grade 12 (7)
Grades 5–6 Lab / experiment
Teams build two column water filters in different layer orders, pour standardized muddy water through each, and compare clarity data in a fair, science-fair-ready test.
Grade 11 Lab / experiment
A grade 11 lab where students track osmosis into dialysis tubing holding 20% and 40% sucrose, estimate osmotic pressure, and weigh reverse-osmosis trade-offs.
Grade 6 Lab / experiment
Students build three weir plates, read the water height at a slow and a fast flow, and pick the notch shape that meets a fictional gauge's three rules.
Grade 12 Lab / experiment
A grade 12 chemistry lab where students calibrate a soap titration with Epsom-salt standards, estimate tap-water hardness as CaCO3, and check it against EDTA.
Grade 7 Lab / experiment
A grade 7 lab where students measure porosity and soak-in time for gravel, sand, and a mix, then use a boring log to compare a sand-gravel aquifer with clay.
Grade 10 Lab / experiment
Students cool bottles of warm water four ways, from still air to an ice-water tub, calculate cooling rates, and advise a fictional school on heat stroke first aid.
Grade 11 Lab / experiment
Groups dry wet cloths in a fan draft, in still air, and under cover, then model drying with ratios and logarithms to explain why hidden wet materials grow mold.
Grade 12 Lab / experiment
A grade 12 health lab where students boil a salt solution, track volume and dissolved solids with a TDS meter, and explain why boiling cannot remove nitrate or lead.
Grade 2 Lab / experiment
Grade 2 students fan a dry thermometer and a wet-wrapped one, graph how a damp hand felt, and use the results to explain how sweat cools skin and why we drink after.