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Structures
Design buildings, towers, and shelters that can stand safely and support weight.
Shape + strengthWhat do engineers do?
Engineers use science, maths, creativity, and teamwork to design things people need. A design does not have to work perfectly on the first try. Testing helps us learn what to change.
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Bridges
Help people and vehicles cross rivers, roads, and valleys with a safe path.
Balance + support⚙️
Machines
Use wheels, levers, pulleys, and ramps to make jobs easier.
Movement + force💧
Water systems
Move, store, and clean water using pipes, channels, and clever designs.
Flow + planning🚲
Transport
Design bicycles, trains, cars, and other ways to move people or things.
Motion + safety♻️
Eco-engineering
Create solutions that save energy, reduce waste, and protect the planet.
Better for EarthInteractive Bridge Builder
Can your bridge hold a pretend load? Change the bridge design and material in this simple learning model. This is a classroom-style simulation, not a real engineering safety test.
DESIGN CHALLENGE 01
Build a bridge across a gap
Try adding triangular supports or choosing a stronger material. Then test how much pretend weight your design can hold.
Choose a design, then test your bridge.
Try this real-life mini-build with an adult: place two sturdy books a short distance apart, lay one sheet of paper across them, and add coins one at a time. Fold a second sheet into an accordion shape and compare. Keep the gap small, use light objects, and stop if anything slips.
Three build-it challenges
Use everyday materials you already have. Start with a sketch, predict what will happen, test gently, and improve your design.
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1. Tallest paper tower
You need: paper, tape, a flat surface.
Build a tower that stands by itself for 10 seconds. Try rolling paper into tubes or folding it into columns.
Think: Which shape keeps the tower upright?
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2. Bridge for a toy
You need: paper, cardboard, two books, a small toy.
Make a bridge between the books. Change its folds or supports until the toy can cross without the bridge sagging.
Think: Where does your bridge need support?
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3. Protective package
You need: scrap paper, a small unbreakable object, tape.
Design a package that protects the object when gently placed on a table. Add padding or a crumple zone.
Think: How can the package absorb a bump?
Simple machines: small ideas, big help
A simple machine changes how a force is used. It can make a task easier, change the direction of a push or pull, or help move an object.
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Lever
A stiff bar turns around a point called a fulcrum. A seesaw is a familiar example.
Try: Place a ruler over a pencil and gently lift a small eraser at one end. Move the pencil and notice what changes.
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Inclined plane
A ramp is a sloping surface that helps move an object to a higher or lower level.
Try: Compare sliding a book up a low ramp and a steeper ramp. Use a light book and do not climb on the ramp.
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Wheel and axle
A wheel turns around an axle and can help objects roll or rotate.
Spot it: Look for wheels on a toy car, suitcase, bicycle, or shopping trolley.
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Pulley
A grooved wheel with a rope can change the direction of a pull and help raise a load.
Spot it: Ask an adult to show you a safe example, such as a flagpole pulley. Never climb to investigate.
My Engineer’s Notebook
Record your idea before you build. Print your notes to keep a record of what you learned.
Your entries stay in this page while it remains open. They are not automatically saved to an account.
Engineering brain challenge
Answer these 10 questions. Read the feedback, then try again to improve your score.
Ready when you are! Choose one answer for each question.
Free engineering worksheets
Print a worksheet for a class, homeschool activity, or a curious afternoon. Each printable is generated right here from a simple activity template.
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Design & Draw
Sketch a structure, label its parts, and explain what problem it solves.
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Predict, Test, Improve
Make a prediction, record your test, and plan one improvement.
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Simple Machines Hunt
Find everyday examples of levers, ramps, wheels, and pulleys.
Build smart. Build safely.
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For young engineers
- Use paper, cardboard, blocks, and other safe materials.
- Ask an adult before using scissors or any tool.
- Never test a structure with a person or pet on it.
- Keep small parts away from young children who may swallow them.
- Stop if a structure wobbles, falls, or feels unsafe.
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For parents and teachers
Focus on curiosity and the design process rather than making a perfect model. Ask children to explain their prediction, observe the result, and name one change they would make.
Use age-appropriate materials, supervise cutting and testing, and keep experiments low, light, and stable.
Engineering for kids: FAQs
What is engineering for kids?
It is learning to solve problems by imagining, planning, building, testing, and improving designs. Children can practise these skills with simple household materials.
What age can children start engineering activities?
Simple supervised building and sorting activities can suit preschool children, while older children can make more detailed plans, compare designs, and record results. Choose the challenge to match the child.
Do we need a special engineering kit?
No. Paper, cardboard, blocks, tape, books, and recycled packaging can be enough for many beginner challenges. Use safe, clean materials and adult supervision.
How is engineering different from science?
Science helps us investigate how the world works. Engineering uses scientific and mathematical ideas to design solutions to practical problems. The two often work together.
Can I use these activities in a classroom?
Yes. Teachers can use the challenges for teamwork, prediction, measurement, vocabulary, and reflection. Adapt materials and instructions to the learners' ages and needs.