STEM CHALLENGE Simple Machines Pulleys and Levers Challenge | 3rd-8th Grade | Low Prep

Simple Machines STEM Challenge: Levers & Pulleys in Action
Bring foundational physics to life with the Simple Machines: Levers & Pulleys STEM Challenge—a hands-on engineering activity where students design and build systems that make work easier. Using everyday materials, students explore how simple machines can lift, move, and transform force through thoughtful design.

In this engaging challenge, students investigate how levers and pulleys function by creating their own working models. They experiment with variables like fulcrum placement, rope length, and applied force to discover how these changes affect efficiency and performance. Through testing and redesign, students naturally engage in the engineering design process—plan, build, test, and improve.

This activity makes abstract physics concepts tangible, helping students see how simple machines are used in real-world tools and systems—from construction equipment to everyday objects.

Students will explore:

• How levers and pulleys reduce effort
• Force, work, and mechanical advantage
• Motion and energy transfer
• Problem solving through design and testing
• Cause-and-effect relationships in systems

Why educators love this activity:

• Uses simple, low-cost materials
• Easy to set up and implement
• Highly engaging and interactive
• Reinforces key physics and engineering concepts
• Encourages creativity, experimentation, and teamwork

Perfect for classrooms, homeschool, STEM labs, or enrichment programs, the Levers & Pulleys STEM Challenge helps students discover how powerful simple machines can be—and how smart design can make even the toughest tasks easier.

Included in this lesson:

1. Step-by-Step Teacher Guide for a 60-90 minute lesson with learning objectives appropriate for 4th-8th Grade

2. Materials List

3. Student Brainstorming and Challenge Page

4. Student Data Collection Page

5. Student Reflection Page

6. Assessment Rubric

7. Additional Resources