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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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53 projects

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

Insulation Showdown

Science, Engineering · Physics, Energy

Wrap cups of hot water in different materials and graph how fast each one cools to find the best insulator.

50 to 80 min · 6 materialsView project
Grade 8
BuildIntermediate

Ping-Pong Ball Parachute Drop

Engineering, Science · Physics, Engineering

Make a parachute for a ping-pong ball and tune its design for the slowest, steadiest drop.

50 to 80 min · 7 materialsView project
Grade 8
BuildIntermediate

Solar Oven Heat Test

Engineering, Science · Energy, Engineering

Build a pizza box solar oven and measure how reflector design changes the temperature inside.

1 to 2 hr · 8 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

Heart Rate and Exercise

Science, Math · Biology, Data Analysis

Measure pulse before, during and after exercise and analyze how fast the body recovers.

40 to 60 min · 5 materialsView project
Grade 9
ExperimentIntermediate

Hovercraft and the Coefficient of Friction

Science, Engineering · Physics, Engineering

Measure the pulling force needed to slide a disc with and without an air cushion and calculate the coefficient of friction.

60 to 90 min · 6 materialsView project
Grade 9
ExperimentIntermediate

Leaf Disk Photosynthesis Assay

Science · Biology, Environmental Science

Make leaf disks sink and time how long they take to float as photosynthesis fills them with oxygen.

1 to 1.7 hr · 8 materialsView project
Grade 9
ExperimentIntermediate

Lenses and Focal Length

Science · Physics, Measurement

Use a magnifying lens to form an image on a screen, measure its focal length, and test the lens equation.

50 to 80 min · 5 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
ExperimentIntermediate

Airfoil Lift and Angle of Attack

Science, Engineering · Physics, Engineering

Mount a model wing in an airstream and measure how lift changes with the angle of the wing.

1 to 1.7 hr · 7 materialsView project
Grade 10
Math ChallengeIntermediate

Estimating Pi with Random Sampling

Math, Technology · Probability, Coding

Scatter random points in a square, count how many land inside a quarter circle, and use the ratio to estimate pi.

50 to 90 min · 5 materialsView project
Grade 10
ExperimentIntermediate

Hooke's Law and the Spring Constant

Science · Physics, Measurement

Hang masses from a spring, measure how far it stretches, and find the spring constant from the slope of a graph.

50 to 80 min · 6 materialsView project
Grade 10
ExperimentIntermediate

Mark and Recapture: Estimating a Population

Science, Math · Biology, Environmental Science

Estimate the number of beans in a bag the way biologists estimate wildlife populations.

45 to 75 min · 5 materialsView project
Grade 10
BuildIntermediate

Turbidity Tube: Measuring Water Clarity

Science, Engineering · Environmental Science, Measurement

Build a turbidity tube, calibrate it with cloudy water samples, and use it to compare local water sources.

60 to 90 min · 7 materialsView project
Grade 11
Math ChallengeAdvanced

Binomial Distribution with Coin Flips

Math · Probability, Data Analysis

Flip 10 coins many times, build a histogram of heads, and compare it with the binomial model.

1 to 1.7 hr · 4 materialsView project
Grade 11
Math ChallengeAdvanced

Fibonacci, Recursion and the Golden Ratio

Technology, Math · Coding, Number Sense

Code the Fibonacci sequence two ways, compare their speed, and watch the ratio of terms home in on the golden ratio.

1 to 1.7 hr · 3 materialsView project
Grade 11
ExperimentAdvanced

Ohm's Law: Voltage, Current and Resistance

Science, Engineering · Electricity, Physics

Measure how current changes with voltage through a resistor and find resistance from the slope of a graph.

60 to 90 min · 6 materialsView project
Grade 11
ExperimentAdvanced

Pendulum Lab: Measuring Gravity with Uncertainty

Science, Math · Physics, Measurement

Use a string and a weight to measure the acceleration of gravity and judge how trustworthy your result is.

60 to 90 min · 7 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

Speed of Sound with a Resonance Tube

Science · Physics, Measurement

Find the speed of sound by listening for resonance in a tube as the water level changes.

60 to 90 min · 5 materialsView project
Grade 12
ExperimentAdvanced

Designing an Experiment and Testing the Difference

Science, Math · Data Analysis, Probability

Run a two-group reaction time experiment, calculate means and standard error, and decide whether the difference is real.

1.3 to 2 hr · 4 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.