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STEM Projects & Olympiad Lab

120 hands-on experiments, engineering builds, and Olympiad-inspired challenges for Grades 1 to 12.

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18 projects

Grade 1
ExperimentBeginner

Rainbow Walking Water

Science · Chemistry, Physics

Watch colored water climb up paper towels from cup to cup and mix to make brand new colors.

20 to 30 min · 6 materialsView project
Grade 1
ExperimentBeginner

What Dissolves in Water?

Science · Chemistry, Data Analysis

Stir different kitchen powders into water and sort them into the ones that disappear and the ones that do not.

20 to 30 min · 5 materialsView project
Grade 2
ExperimentBeginner

Ice Melt Race

Science · Chemistry, Measurement

Add salt or sugar to ice cubes and find out what melts ice the fastest.

25 to 40 min · 7 materialsView project
Grade 2
ExperimentBeginner

Paper Towel Absorbency Test

Science · Chemistry, Measurement

Compare brands of paper towel to find out which one soaks up the most water.

25 to 35 min · 5 materialsView project
Grade 5
ExperimentIntermediate

Dissolving Speed and Water Temperature

Science · Chemistry, Measurement

Time how long sugar takes to dissolve in cold, warm and hot water, then explain what you see.

30 to 45 min · 6 materialsView project
Grade 5
ExperimentIntermediate

Lemon Battery

Science, Engineering · Electricity, Chemistry

Make a battery from lemons, a nail and a coin and measure its voltage as you add more lemons.

40 to 65 min · 6 materialsView project
Grade 7
ExperimentIntermediate

Crime Lab: Ink Chromatography

Science · Chemistry, Data Analysis

Separate the colors in black pens with paper chromatography to find which pen wrote a mystery note.

40 to 60 min · 6 materialsView project
Grade 7
ExperimentIntermediate

Liquid Density Tower

Science · Chemistry, Physics

Layer honey, dish soap, water and oil in a glass and measure the density of each liquid to explain the order.

40 to 60 min · 8 materialsView project
Grade 7
ExperimentIntermediate

Osmosis in Potato Cylinders

Science · Biology, Chemistry

Soak potato pieces in salt solutions of different strengths and use their mass change to find the concentration that matches the potato cells.

1 to 2 hr · 7 materialsView project
Grade 8
ExperimentIntermediate

Food Science: Emulsions and Mayonnaise

Science · Chemistry, Data Analysis

Mix oil and water with different ingredients to find which emulsifiers hold the mixture together.

45 to 70 min · 6 materialsView project
Grade 8
ExperimentIntermediate

Yeast Balloon: Measuring Respiration

Science · Biology, Chemistry

Use yeast, sugar and a balloon to measure how temperature changes the amount of gas living cells make.

45 to 75 min · 8 materialsView project
Grade 9
ExperimentIntermediate

Catalase: Enzyme Activity in a Potato

Science · Biology, Chemistry

Measure foam produced when hydrogen peroxide meets potato and test how temperature and surface area change the rate.

50 to 80 min · 8 materialsView project
Grade 9
ExperimentIntermediate

Chromatography and Rf Values

Science · Chemistry, Measurement

Identify unknown dyes by measuring their Rf values and matching them to known samples.

60 to 90 min · 7 materialsView project
Grade 9
ExperimentIntermediate

Red Cabbage pH Indicator Lab

Science · Chemistry, Data Analysis

Make a natural pH indicator from red cabbage and use its colors to rank everyday liquids from acid to base.

60 to 90 min · 11 materialsView project
Grade 10
ExperimentAdvanced

Food Calorimetry: How Much Energy Is in a Snack?

Science · Chemistry, Energy

Burn a snack under a can of water, measure the temperature rise, and compare the energy you capture with the label.

60 to 90 min · 9 materialsView project
Grade 11
ExperimentAdvanced

Boyle's Law with a Syringe

Science · Physics, Chemistry

Squeeze trapped air with weights and show that pressure and volume change in opposite ways.

60 to 90 min · 6 materialsView project
Grade 11
ExperimentAdvanced

Reaction Rate and Temperature

Science · Chemistry, Measurement

Time how fast an effervescent tablet reacts in water at different temperatures and model the trend.

50 to 80 min · 6 materialsView project
Grade 11
ExperimentAdvanced

Specific Heat by Calorimetry

Science · Physics, Chemistry

Drop hot metal into cool water in an insulated cup and use the temperature change to find the metal's specific heat.

60 to 90 min · 8 materialsView project

EduVistaHQ.com · Learn • Explore • Grow. Olympiad-inspired activities are practice for the skills those competitions use. EduVistaHQ is not affiliated with Science Olympiad or any other competition organization.