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Simple Machines: Six Ways to Make Hard Work Easy

Students discover the six simple machines hiding in everyday tools — and learn how each one lets a small push move a big load.

Grades 3–5Upper Elementary45 minutes1 class period5E ModelInquiry-based4 StandardsNGSS + CCSS
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Lesson at a Glance

Everything you need before the bell rings

Learning Objectives

Students will be able to…

  • ✓Identify the six simple machines and what each one looks like.
  • ✓Explain how each machine makes work easier.
  • ✓Find simple machines in everyday tools and objects.
  • ✓Recognize that compound machines combine simple ones.
Essential Question

How can one person lift something far too heavy to pick up? The secret is six simple machines you use every single day.

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5E Phases
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Vocabulary Terms
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Standards Aligned
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Interactive Task
Explore · Interactive Model

The Simple Machines Explorer

Project this and click through all six machines. Have students record an example of each one they could find in the classroom or at home.

🛠️ Explore the six simple machines — tap each oneTry it

The Lesson · 5E Model

45 minutes, five moves

Tap any phase to open the teacher moves and student actions.

1

Engage — The Impossible Lift

5 min

Try to lift a stack of books with one finger — then with a ramp.

👩‍🏫 Teacher Moves

  • Challenge a student to lift something heavy alone.
  • Then show it moving easily up a ramp.
  • Ask: “How did the tool make it easier?”

🎒 Student Actions

  • Try (and struggle with) the heavy lift.
  • Watch the ramp make it easy.
  • Predict how a tool changes the work.
2

Explore — Machines Explorer

12 min

Students tour all six machines and find examples.

👩‍🏫 Teacher Moves

  • Send groups to the Machines Explorer above.
  • Ask for a real example of each machine.
  • Prompt: “What job does each one make easier?”

🎒 Student Actions

  • Tap through all six machines.
  • Record a real-world example of each.
  • Look around the room for hidden machines.
3

Explain — Six Machines, One Idea

12 min

Every machine trades effort for ease.

👩‍🏫 Teacher Moves

  • Name all six and how each helps.
  • Explain that machines make work feel easier.
  • Introduce fulcrum, load, and effort.

🎒 Student Actions

  • Match each machine to how it helps.
  • Label a lever’s fulcrum, load, and effort.
  • Explain a ramp vs. lifting straight up.
4

Elaborate — Compound Machines

11 min

What happens when we combine them?

👩‍🏫 Teacher Moves

  • Show scissors (lever + wedge) and a bicycle.
  • Define a compound machine as combined simple ones.
  • Ask students to spot machines in a classroom tool.

🎒 Student Actions

  • Break a tool into its simple machines.
  • Name two machines inside a bicycle.
  • Sketch a compound machine and label it.
5

Evaluate — Exit Ticket

5 min

Three quick checks on the six machines.

👩‍🏫 Teacher Moves

  • Hand out the exit ticket below.
  • Look for correct machine + how it helps.
  • Collect as formative data.

🎒 Student Actions

  • Name a simple machine and an example.
  • Explain how it makes work easier.
  • Identify machines in a compound tool.
Standards Alignment

Built to the standards you report on

Aligned to Next Generation Science Standards and Common Core literacy. State-standard crosswalks available on request.

NGSS
3-5-ETS1-1

Define a simple design problem reflecting a need or want that includes criteria and constraints.

NGSS
3-5-ETS1-2

Generate and compare multiple possible solutions to a problem.

NGSS
3-PS2-1

Provide evidence of the effects of balanced and unbalanced forces on the motion of an object.

CCSS
RI.4.3

Explain events, procedures, ideas, or concepts in a scientific text based on specific information.

Differentiation

One lesson, every learner

Multilingual Learners

ELL / EMERGING READERS
  • Real classroom objects to sort by machine type.
  • Picture-word cards for each of the six machines.
  • Sentence frame: “A ___ helps by ___.”

Support & Access

IEP / 504
  • Focus on three machines first (lever, ramp, wheel).
  • Provide a matching sheet (machine → example).
  • Allow pointing to real objects instead of writing.

Stretch & Extend

GIFTED / EARLY FINISHERS
  • Design a Rube Goldberg machine using 3+ simple machines.
  • Investigate how a longer ramp changes the effort.
  • Research how pulleys lift huge loads on a crane.
Materials

What to gather

  • 📽️Projector / board
  • 📓Science notebooks
  • 💻The Machines Explorer
  • 🔧Real tools (scissors, ramp, screw)
  • ✏️Colored pencils
  • 🎫Exit-ticket slips
Vocabulary

Key terms — hover for a quick definition

simple machinea basic tool that makes work easierlevera bar that pivots on a fulcrumfulcrumthe pivot point of a leverpulleya wheel and rope that liftsinclined planea rampwedgetwo ramps that split or cutscrewa ramp wrapped around a postcompound machinetwo or more simple machines together
Evaluate

Exit Ticket

Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.

QUESTION 1
Name two simple machines and give an example of each.
Sample: A lever (see-saw) and an inclined plane (ramp).
QUESTION 2
How does a ramp (inclined plane) make work easier?
It lets you move a load up to a higher place with less effort by spreading the work over a longer, gentler distance instead of lifting straight up.
QUESTION 3
Scissors are a compound machine. Which two simple machines make them work?
A lever (the handles pivot on a fulcrum) and a wedge (the sharp blades).

Going deeper? Build a Rube Goldberg machine.

Challenge groups to combine at least three simple machines to complete one silly task (ring a bell, pop a balloon). A printable planning grid is in the Science library.

Study · Flashcards

Study the key terms

Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.

🃏 Simple MachinesFlip
Card 1
Term
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Meaning
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Practice · Quiz

Check your understanding

A quick self-check with instant feedback, drawn from this lesson’s key terms.

📝 Simple MachinesQuiz
Score: 0
1 / 6
Question 1
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Practice · Worksheet

Printable worksheet

A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.

🖨️ Simple MachinesPrint
Name: ________________________
Date: ____________

Part A · Write the word that matches each meaning

Word bank: compound machine, fulcrum, inclined plane, lever, pulley, screw, simple machine, wedge
  1. a wheel and rope that lifts
  2. a ramp wrapped around a post
  3. a bar that pivots on a fulcrum
  4. a ramp
  5. two or more simple machines together
  6. the pivot point of a lever
  7. two ramps that split or cut
  8. a basic tool that makes work easier

Part B · Show what you learned

  1. Name two simple machines and give an example of each.
  2. How does a ramp (inclined plane) make work easier?
  3. Scissors are a compound machine. Which two simple machines make them work?
Answer key — Part A: 1) pulley · 2) screw · 3) lever · 4) inclined plane · 5) compound machine · 6) fulcrum · 7) wedge · 8) simple machine
Part B: 1) Sample: A lever (see-saw) and an inclined plane (ramp). 2) It lets you move a load up to a higher place with less effort by spreading the work over a longer, gentler distance instead of lifting straight up. 3) A lever (the handles pivot on a fulcrum) and a wedge (the sharp blades).