Forces in Action

Overview

Subject: Science
Grade Level: Year 5 (Approximately 10–11 years old)
Lesson Duration: 30 minutes
Class Size: 17 students
Curriculum Standard:
Saskatchewan Science Curriculum - Physical Science: Forces and Simple Machines
Outcome:
MC5.1 – Describe how forces can act directly or from a distance to cause objects to start moving, speed up, slow down, change direction, or stop moving.

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Learning Objectives

By the end of the 30-minute lesson, students will be able to:

1. Identify and describe direct and indirect (distance) forces.
2. Predict and explain how everyday objects move when forces are applied.
3. Demonstrate understanding of how objects can start, stop, speed up, slow down, or change direction due to force.
4. Engage in hands-on, inquiry-based group activity to apply these concepts.

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Materials Needed

• Small toy cars (1 per group of 3-4 students)
• Marbles
• Magnets
• Ruler or measuring tape
• Stopwatch
• Ramp boards (books or boxes to create inclines)
• Balloons
• Chart paper and markers
• "Forces Prediction Cards" (prepared in advance, see Activity section)
• Whiteboard and dry erase markers

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Lesson Breakdown

🔹 Introduction (5 minutes)

Activate Prior Knowledge + Hook

• Start with a quick question to spark curiosity:
  “Can something move without being touched?”
• Allow 2-3 students to share thoughts aloud. Quickly record answers on the board.
• Brief demo: Hold two magnets near each other without touching. Demonstrate repelling force and ask:
  “What just made that happen without touching?”

Explain that today, we’ll explore how forces can act directly (like pushing a toy car) or from a distance (like magnets or gravity), and how they change the motion of objects.

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🔹 Direct Instruction (5 minutes)

Key Concepts to Highlight
Use images or simple diagrams on the board:

• Force is a push or pull.
• Direct force needs contact — e.g., pushing a door.
• Distance force doesn’t need contact — e.g., gravity, magnetism.
• Forces can:
  • Start motion
  • Stop motion
  • Speed things up
  • Slow them down
  • Change their direction

Use clear, relatable language — e.g., “You apply force when you kick a soccer ball” or “Magnets can pull or push without touching.”

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🔹 Group Activity: "Force Lab Circuits" (15 minutes)

Students rotate through 3 mini-stations. 5 minutes per station.

Break the 17 students into 4 groups (3 groups of 4, 1 group of 5). Assign each group a starting numbered station.

Station 1: Push or Pull?

• Materials: Toy cars, ramps, balloons (filled and prepped).
• Students release cars from different ramp heights and inflate/release balloons to push cars.
• Record observations: How did the speed or direction change with more force?

Station 2: Magnetic Mayhem

• Materials: Magnets, marbles.
• Move marbles using magnets without touching. Challenge students: How far away can a force still act?
• Record: What did the force do to the marble?

Station 3: Gravity Drop

• Materials: Balls of different weights.
• Drop them from the same height. Ask students to time (estimate counts out loud or use stopwatch).
• Predict and observe which hits first.
• Discuss: Is gravity a contact force?

Bonus Activity (if time): Prediction Cards

• Each group pulls a card with a real-life scenario (e.g., "A hockey puck slides across the ice and slows down").
• They must identify the type of force and describe the effect on motion.

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🔹 Class Discussion + Wrap-up (5 minutes)

Discussion Prompts:

• "What’s the difference between a direct and a distance force?"
• "Which station surprised you the most today?"
• Invite students to share one way they experienced a force today — outside of class.

Wrap-up Concept Map:
Draw a central circle labelled "Forces" and ask students to help fill in surrounding concepts like Push, Pull, Start, Stop, Change direction, Gravity, etc. as a class reflection.

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Assessment

Formative:

• Observation of participation at each station.
• Student contributions during wrap-up.
• Station notebooks or worksheets with recorded observations.

Summative (Optional Extension for Next Class):

• Short exit slip asking:
  • “Give an example of a distance force.”
  • “Describe how a force can change an object's direction.”

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Extensions and Differentiation

• Support Learners: Pair with a peer in activities. Use visuals to support comprehension.
• Challenge Learners: Ask "what if" questions — e.g., “What would happen to your toy car on the ramp if there was no gravity?”
• Cross-curricular Tie-In:
  • Art: Create posters showing different forces in action.
  • English Language Arts: Write a short story or comic strip featuring forces acting on a superhero.

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Teacher Reflection Suggestions

After the lesson, consider these questions:

• Were students able to articulate the difference between contact and distance forces?
• Which station was most engaging or provided the clearest understanding?
• How did students show their understanding through observation and discussion?

📘 This lesson aligns tightly with Saskatchewan’s expectations for understanding forces in Grade 5 Physical Science, and invites curiosity through hands-on inquiry, discussion, and visual learning.

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“Wow” Factor ✅

• Active, team-based learning allows every student to engage.
• Clear, curriculum-aligned inquiry tasks.
• Demonstrates the invisible, like magnetism and gravity, in visually exciting ways.
• Fosters scientific thinking while remaining age-appropriate and fun!

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Let students leave the classroom feeling the forces all around them — pushing through the door, walking against the wind, or jumping up before gravity pulls them back down. Because that’s science in motion.