Students use this chart to determine if objects like bees, birds, and snowflakes meet the criteria for being living things.

Let's solve this worksheet step by step. The goal is to classify each object as living or nonliving based on whether it exhibits the characteristics of life: breathing, eating, moving, and reproducing.

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🔍 Key Characteristics of Living Things:

- Breathes – takes in oxygen and releases carbon dioxide
- Eats – consumes food for energy
- Moves – can move on its own (not just due to wind or water)
- Reproduces – can create offspring
- If an object does all four, it is living.

Now let’s analyze each object:

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1. Bug (Insect)

- Does it breathe? ✔ Yes – insects have respiratory systems.
- Does it eat? ✔ Yes – insects consume food (e.g., nectar, leaves).
- Does it move? ✔ Yes – it moves on its own using legs.
- Does it reproduce? ✔ Yes – insects lay eggs or give birth.
- Living? ✔ Yes

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2. Alarm Clock

- Does it breathe? ✘ No – machines don’t breathe.
- Does it eat? ✘ No – doesn’t consume food.
- Does it move? ⚠️ It may move (e.g., hands on clock), but not on its own; it’s mechanical.
- Does it reproduce? ✘ No – cannot make more clocks.
- Living? ✘ No

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3. Bird

- Does it breathe? ✔ Yes – birds have lungs and breathe air.
- Does it eat? ✔ Yes – eats seeds, insects, etc.
- Does it move? ✔ Yes – flies, walks, flaps wings.
- Does it reproduce? ✔ Yes – lays eggs.
- Living? ✔ Yes

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4. Rose (Flower)

- Does it breathe? ✔ Yes – plants perform respiration (take in O₂, release CO₂).
- Does it eat? ⚠️ Not like animals — they make their own food via photosynthesis, so we say "no" if thinking strictly about consuming food. But they need nutrients from soil/water.
- In elementary science, this is often considered "no" because they don’t "eat" like animals.
- Does it move? ✘ Not on its own — grows slowly, but not self-propelled movement.
- Does it reproduce? ✔ Yes – produces seeds and flowers.
- Living? ✔ Yes — even though it doesn't "eat" or "move" like animals, it still has all life processes (respiration, growth, reproduction).

> Note: For young students, "eat" might be interpreted as consuming food like animals. So, plants do not "eat" in that sense, but they are still living.

So:
- Eat? ✘ (in simple terms)
- But still Living? ✔

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5. Snowflake

- Does it breathe? ✘ No – no biological system.
- Does it eat? ✘ No – no consumption.
- Does it move? ⚠️ It falls due to gravity, but not on its own.
- Does it reproduce? ✘ No – forms naturally but doesn’t create new snowflakes.
- Living? ✘ No

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✔ Final Answer Table:

| Object | Does it breathe? | Does it eat? | Does it move? | Does it reproduce? | Living? |
|--------------|------------------|--------------|---------------|--------------------|---------|
| Bug | Yes | Yes | Yes | Yes | Yes |
| Alarm Clock | No | No | No | No | No |
| Bird | Yes | Yes | Yes | Yes | Yes |
| Rose | Yes | No (makes own food) | No (slow growth) | Yes | Yes |
| Snowflake | No | No | No | No | No |

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📝 Explanation Summary:

- Living things must have some way of breathing, getting energy (eating or making food), growing/moving, and reproducing.
- Plants like roses are living even though they don’t “eat” or move like animals.
- Nonliving things like clocks and snowflakes lack these traits.

✔ This worksheet teaches students how to use scientific criteria to classify objects.

Let me know if you'd like a printable version or help with coloring/labeling!