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STEM Projects & Olympiad Lab

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

120 projects

Grade 8
Math ChallengeIntermediate

Codebusters: Caesar and Cipher Cracking

Math, Technology · Logic, Number Sense

Make secret messages with a Caesar cipher and crack coded messages using letter frequency.

40 to 70 min · 4 materialsView project
Grade 8
BuildIntermediate

Earthquake Shake Table

Engineering, Science · Earth Science, Structures

Build a shake table and test how bracing and base design help a model building survive an earthquake.

1 to 1.7 hr · 7 materialsView project
Grade 8
BuildAdvanced

Elastic Launched Glider

Engineering, Science · Physics, Engineering

Build a lightweight glider launched by a rubber band and tune it for the longest flight time or distance.

1.5 to 2.5 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

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
ExperimentIntermediate

Series and Parallel Circuit Lab

Science, Engineering · Electricity, Physics

Wire bulbs in series and in parallel, measure brightness and current, and find the rules that explain the difference.

50 to 80 min · 5 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
Math OlympiadIntermediate

Counting Problems: Permutations and Combinations

Math · Probability, Logic

Discover systematic ways to count arrangements and selections, and use them to solve olympiad-style problems.

50 to 80 min · 3 materialsView project
Grade 9
Math OlympiadAdvanced

Digit Sums and Divisibility

Math · Number Sense, Logic

Discover why you can test for divisibility by 3 and 9 by adding digits, and prove it.

45 to 75 min · 3 materialsView project
Grade 9
Math OlympiadIntermediate

Euler Paths and the Konigsberg Bridges

Math · Logic, Geometry

Decide whether a route can cross every bridge once and discover the rule that solves every such puzzle.

50 to 80 min · 4 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 OlympiadAdvanced

Clock Math: Modular Arithmetic

Math · Number Sense, Logic

Explore arithmetic that wraps around like a clock and use it to solve remainder and last digit puzzles.

50 to 80 min · 3 materialsView project
Grade 10
Math OlympiadAdvanced

Discovering Pick's Theorem on a Geoboard

Math · Geometry, Logic

Draw polygons on dot paper, count points, and discover a formula for area using only dots.

50 to 90 min · 4 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
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

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.