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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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29 projects

Grade 1
Math ChallengeBeginner

Pattern Train

Math · Logic, Number Sense

Build trains of colored blocks that follow a pattern and figure out what comes next.

20 to 35 min · 2 materialsView project
Grade 2
Math ChallengeBeginner

Coin Counting: The Make Change Shop

Math · Number Sense, Logic

Run a pretend shop and find the fewest coins to make each price and give back change.

30 to 45 min · 5 materialsView project
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

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
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
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
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 5
Math ChallengeIntermediate

The Garden Fence Challenge

Math, Engineering · Geometry, Measurement

Find the shape of rectangular garden that gives the most room when you have a fixed amount of fence.

40 to 65 min · 5 materialsView project
Grade 6
ExperimentIntermediate

Design Your Own Fair Test

Science, Math · Data Analysis, Measurement

Pick a question about everyday life, design a fair experiment to answer it, and present your results.

60 to 90 min · 4 materialsView project
Grade 6
Math ChallengeIntermediate

Fair or Unfair Dice Game

Math · Probability, Data Analysis

Play a two-dice game, collect the results, and discover which player has the better chance of winning.

40 to 60 min · 3 materialsView project
Grade 6
Math ChallengeIntermediate

Unplugged Coding: Robot Maze

Technology, Math · Coding, Logic

Write step-by-step commands to guide a human robot through a floor maze, then improve your code with loops.

40 to 60 min · 4 materialsView project
Grade 6
BuildIntermediate

Write It, Do It: Clear Instructions Challenge

Engineering, Math · Engineering, Geometry

Write instructions for building a hidden object so well that a partner can rebuild it without ever seeing it.

40 to 60 min · 5 materialsView project
Grade 7
Math ChallengeIntermediate

Binary Numbers and Coding Cards

Technology, Math · Coding, Number Sense

Use five cards to count, convert and send secret messages in binary, the language computers use.

45 to 70 min · 4 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
Math OlympiadIntermediate

The Pigeonhole Principle

Math · Logic, Number Sense

Discover a simple idea that guarantees surprising facts, such as two people in a class sharing a birthday month.

40 to 60 min · 3 materialsView project
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 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 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 ChallengeAdvanced

Vigenere Cipher and Frequency Analysis

Math, Technology · Logic, Coding

Encrypt with a keyword and break the cipher by splitting the message and using frequency analysis on each part.

1 to 1.7 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.