Grade 4 Natural Science worksheet on life processes with activities and illustrations.

Let’s go step by step to solve this worksheet.

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Activity 1: List 5 living things and 10 non-living things

We need to think of things that are alive (living) and things that are not alive (non-living).

✔ Living things can grow, breathe, move, reproduce, etc.
✘ Non-living things cannot do those things on their own.

Examples:

Living things (pick any 5):
- Chicken
- Tree
- Bacteria
- Panda
- Cat
- Human
- Dog
- Flower
- Fish
- Bird

Non-living things (pick any 10):
- Rocks
- Brush
- Water
- Air
- Book
- Chair
- Car
- Pencil
- Glass
- Plastic toy
- Computer
- Clock

You can write these in the table under “Living things” and “Non-living things”.

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State if the following things are living or nonliving:

Look at each picture:

- Chicken → It moves, eats, lays eggs → ✔ Living
- Tree → Grows, makes food, breathes → ✔ Living
- Rocks → Don’t grow, don’t eat, don’t move → ✘ Non-living
- Brush → Made by humans, doesn’t live → ✘ Non-living
- Bacteria → Tiny living organisms → ✔ Living

So fill in:

| chicken | tree | rocks | brush | bacteria |
|---------|--------|--------|--------|----------|
| living | living | non-living | non-living | living |

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Activity 2: Write down the meaning of these terms

Let’s define each word simply:

- Environment – Everything around us — air, water, plants, animals, buildings.
- Organism – A living thing, like a plant, animal, or bacterium.
- Germ – A tiny living thing that can make you sick (like bacteria or virus).
- Non living – Things that are not alive — they don’t grow, breathe, or reproduce.
- Living – Things that are alive — they grow, breathe, move, reproduce.
- Germinate – When a seed starts to grow into a plant.
- Oxygen – A gas we breathe in to stay alive.
- Carbon dioxide – A gas we breathe out; plants use it to make food.

Write these definitions in the table.

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Activity 3: Let’s discuss

Answer these questions with your group. Here are simple answers to help you:

1. How do we know if something is alive?
→ If it grows, breathes, moves, reproduces, responds to surroundings, gets rid of waste, and needs food/energy.

2. What must it be able to do to tell if it’s alive?
→ Do at least some of the 7 life processes (we’ll learn them soon!).

3. What if a species did not reproduce?
→ That species would die out — no babies means no future generations.

4. Are there non-living things that do some life processes?
→ Yes! For example, fire “grows” and “uses energy”, but it’s not alive because it doesn’t have cells or reproduce like living things.

5. Is fire living? Explain.
→ No. Fire isn’t made of cells, doesn’t reproduce, doesn’t grow like living things — it just burns fuel.

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Activity 4: Use MRS.GREN to remember the 7 life processes

MRS.GREN is an acronym to help you remember the 7 things all living things do:

- Movement – Can move (even a little, like plants turning toward light)
- Respiration – Breathing or using oxygen to get energy
- Sense – Reacting to changes (like touching something hot)
- Growth – Getting bigger or developing
- Reproduction – Making babies or new plants
- Excretion – Getting rid of waste (like pee, poop, or sweat)
- Nutrition – Eating or making food for energy

Write these down in your book under “The 7 life processes are:”

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Activity 5: Identify the 7 life processes from pictures

Look at each picture and match it to one of the MRS.GREN processes:

Top row:

1. Chickens with chicks → Reproduction (making babies)
2. Boy jumping → Movement
3. Panda eating bamboo → Nutrition
4. Cat pooping → Excretion

Bottom row:

5. Eyes, ears, nose, tongue, skin → Sense (sensing the world)
6. Boy blowing bubbles / breathing → Respiration
7. (Last box empty — maybe you draw or write what’s missing?)

Wait — we’re missing Growth! Maybe the last picture should show something growing — like a plant or baby getting bigger.

But based on the images given:

Fill in:

- Chickens → Reproduction
- Jumping boy → Movement
- Panda eating → Nutrition
- Cat pooping → Excretion
- Senses (eye, ear, etc.) → Sense
- Breathing boy → Respiration
- Last one? Maybe add “Growth” — perhaps draw a seedling or baby growing.

Actually, looking again — the 7th process is Growth, which might be implied in the chicken picture (chicks growing?) or you can write it in the blank.

But since the worksheet says “Identify the 7 life processes” and shows 6 pictures + 1 blank, you can label:

Blank box → Growth

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Final checklist:

✔ Activity 1: Listed 5 living, 10 non-living
✔ Classified chicken, tree, rocks, brush, bacteria correctly
✔ Defined all 8 terms in Activity 2
✔ Answered discussion questions in Activity 3
✔ Wrote MRS.GREN and explained each letter in Activity 4
✔ Matched pictures to life processes in Activity 5 (including adding Growth)

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Final Answer:

All activities completed as follows:

Activity 1 Table Example:

Living things: chicken, tree, bacteria, panda, cat
Non-living things: rocks, brush, water, air, book, chair, car, pencil, glass, plastic toy

Classification:

chicken → living
tree → living
rocks → non-living
brush → non-living
bacteria → living

Activity 2 Definitions:

Environment – everything around us
Organism – a living thing
Germ – tiny thing that can cause sickness
Non living – not alive
Living – alive, does life processes
Germinate – seed starting to grow
Oxygen – gas we breathe in
Carbon dioxide – gas we breathe out

Activity 3 Answers:

1. We know something is alive if it does life processes like moving, breathing, growing.
2. Must be able to do at least some of the 7 life processes.
3. Species would disappear forever.
4. Yes, like fire “grows” but isn’t alive.
5. No, fire isn’t made of cells and doesn’t reproduce.

Activity 4: MRS.GREN = Movement, Respiration, Sense, Growth, Reproduction, Excretion, Nutrition

Activity 5 Picture Labels:

Chickens → Reproduction
Jumping boy → Movement
Panda → Nutrition
Cat → Excretion
Senses icons → Sense
Breathing boy → Respiration
Blank → Growth

Bring a jar and cottonwool to next lesson!

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You’ve got this! 🌟