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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 3
ExperimentBeginner

Fingerprint Detectives

Science · Biology, Data Analysis

Lift fingerprints with cocoa powder and tape and sort them into arches, loops and whorls.

35 to 50 min · 6 materialsView project
Grade 3
Math ChallengeBeginner

Fraction Strips Puzzles

Math · Number Sense, Geometry

Fold paper strips into halves, thirds, fourths and more, and use them to compare and match fractions.

35 to 55 min · 5 materialsView project
Grade 3
Math ChallengeBeginner

Measure and Estimate Like a Pro

Math, Science · Measurement, Number Sense

Guess lengths, masses and volumes first, then measure them, and see how close your estimates can get.

30 to 45 min · 5 materialsView project
Grade 3
Math ChallengeBeginner

Multiplication Array Puzzles

Math · Number Sense, Geometry

Use rows of counters to see multiplication, and discover why 3 times 4 equals 4 times 3.

30 to 45 min · 3 materialsView project
Grade 3
ExperimentIntermediate

Pulley Lift Challenge

Science, Engineering · Machines, Physics

Lift a load with a fixed pulley and a moving pulley and measure how much easier each one makes the job.

40 to 60 min · 6 materialsView project
Grade 3
ExperimentBeginner

Rolling Race: Which Surface Is Fastest?

Science · Physics, Measurement

Roll a toy car down a ramp onto different floors and find out which surface slows it the most.

30 to 45 min · 6 materialsView project
Grade 3
BuildBeginner

Rubber Band Guitar

Science, Engineering · Physics, Engineering

Make a guitar from a box and rubber bands and discover how to make higher and lower sounds.

35 to 50 min · 5 materialsView project
Grade 3
ExperimentBeginner

Soil Sleuths: Which Soil Drains Fastest?

Science · Earth Science, Environmental Science

Pour water through sand, clay and garden soil and find out which one lets water pass through fastest.

35 to 50 min · 8 materialsView project
Grade 3
Math ChallengeBeginner

Tangram Shape Challenge

Math · Geometry, Logic

Cut a tangram puzzle into seven pieces and rearrange them to make animals, houses and shapes that share the same area.

30 to 45 min · 3 materialsView project
Grade 4
BuildIntermediate

Build a Simple Circuit Flashlight

Science, Engineering · Electricity, Engineering

Light a small bulb with a battery and wires, then build a switch from paper clips.

40 to 60 min · 6 materialsView project
Grade 4
BuildIntermediate

Build and Test a Catapult

Engineering, Science · Engineering, Physics

Build a craft stick catapult and find out how pull back and angle change how far it launches.

45 to 70 min · 7 materialsView project
Grade 4
Math OlympiadBeginner

Logic Grid Puzzles

Math · Logic

Solve and invent puzzles that use clues and a grid to work out who owns what.

35 to 55 min · 4 materialsView project
Grade 4
Math OlympiadIntermediate

Magic Squares

Math · Logic, Number Sense

Place the numbers 1 to 9 in a grid so every row, column and diagonal adds to the same total.

30 to 50 min · 3 materialsView project
Grade 4
BuildIntermediate

Pasta Bridge: The Penne Express

Engineering · Structures, Engineering

Build a bridge from penne pasta and glue, then test how much weight it can hold compared with its own mass.

1 to 2 hr · 7 materialsView project
Grade 4
BuildIntermediate

Protect the Egg: Drop Challenge

Engineering, Science · Engineering, Physics

Design a cushioned package that keeps a raw egg safe when it is dropped from a height.

50 to 80 min · 6 materialsView project
Grade 4
ExperimentBeginner

Static Electricity Detective

Science · Electricity, Physics

Rub a balloon on different materials and test which one gives the strongest static charge.

30 to 45 min · 6 materialsView project
Grade 4
Math OlympiadBeginner

The Handshake Puzzle

Math · Logic, Number Sense

Act out handshakes with friends and discover the pattern behind counting pairs.

30 to 45 min · 4 materialsView project
Grade 4
ExperimentBeginner

Water Cycle in a Bag

Science · Earth Science, Environmental Science

Seal water in a bag on a sunny window and watch evaporation, condensation and rain happen.

20 to 30 min · 6 materialsView project
Grade 5
BuildIntermediate

Build and Test a Water Filter

Engineering, Science · Environmental Science, Engineering

Design a filter from sand, gravel and cotton and test how well it cleans muddy water.

60 to 90 min · 9 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

Erosion Control: Slope and Ground Cover

Science, Engineering · Earth Science, Environmental Science

Pour rain on soil slopes with and without plants or mulch and measure how much soil washes away.

45 to 70 min · 8 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 5
BuildBeginner

Paper Helicopter Rotor Test

Engineering, Science · Physics, Engineering

Make a spinning paper helicopter and test how blade length changes how long it takes to fall.

35 to 55 min · 6 materialsView project
Grade 5
BuildIntermediate

Parachute Drop Test

Science, Engineering · Physics, Engineering

Build parachutes of different sizes and find out how canopy size changes how long a toy takes to fall.

40 to 60 min · 6 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.