Diffusion in Science

Name:

Date:

🎯 WALT: We Are Learning To understand diffusion and its importance

Success Criteria: I can define diffusion, give examples, and explain how it works at cellular level

1. What is diffusion? Choose the best definition:

The movement of particles from high to low concentration

The movement of water only

The movement of particles using energy

The movement of particles in one direction only

2. Which of these are examples of diffusion in everyday life? (Tick all that apply)

Smell of perfume spreading across a room

Food colouring mixing in water

Oxygen entering your lungs

A ball rolling down a hill

3. Complete this sentence about diffusion:

Diffusion happens because particles are constantly __________ and move from areas of __________ concentration to areas of __________ concentration until they are __________ spread out.

4. Why is diffusion important for living cells?

🔬 Part 2: Diffusion in Action

5. Look at this simple diffusion experiment:

A drop of blue food colouring is placed in a beaker of warm water and another in cold water.

a) In which beaker will the colour spread faster? Circle your answer:

WARM WATER COLD WATER

b) Explain your answer:

6. Describe how oxygen gets from your lungs into your blood using the word 'diffusion':

7. A student puts a tea bag in hot water. Explain what happens using these key words:

Key words: particles, concentration, movement, diffusion

🌟 Extension Activity

8. Research Task: Choose ONE real-world application of diffusion and describe it:

How kidneys filter blood

How plants absorb nutrients

How air fresheners work

How fish breathe underwater

Describe your chosen application:

💡 Dyslexia-Friendly Support:

• Use the key words provided in each question
• Draw diagrams to help explain your answers
• Ask for help reading questions aloud if needed
• Use bullet points instead of long sentences