Natural Sciences & Technology - Grade 4: Worksheets • Teacha! - Free Printable

Problem Analysis:

The image provided is a conceptual diagram explaining the distinction between living and non-living things, along with some nuances about how living things can appear non-living under certain conditions. The task appears to be to understand and explain the concepts presented in the diagram.

Key Concepts in the Diagram:

1. Living Things:
- Living things carry out ALL 7 life processes:
- Moving
- Reproducing
- Sensing
- Breathing
- Growing
- Excreting
- Feeding

2. Non-living Things:
- Non-living things do NOT carry out ALL 7 life processes.

3. Once Living:
- Living things can die, and their remains can become non-living.
- Example: A tree that was cut down and made into a table.

4. Living Things Can Appear to Be Non-living:
- Under certain conditions, living things may appear non-living but can revive or become active again.
- Examples:
- Fertilized eggs need warmth to hatch.
- Seeds need warmth, light, and moisture to sprout.
- Yeast needs warmth and sugar to activate (e.g., when baking bread).

Solution Explanation:

#### 1. Living vs. Non-living:
- Living Things: These are entities that exhibit all seven life processes. They are capable of growth, reproduction, movement, sensing their environment, breathing (or respiration), excretion, and feeding. Examples include animals, plants, fungi, bacteria, and protists.
- Non-living Things: These are entities that do not exhibit all seven life processes. They lack the ability to grow, reproduce, move, sense, breathe, excrete, or feed. Examples include rocks, water, air, and tables.

#### 2. Once Living:
- Some objects were once living but are now non-living because they have died. For example:
- A tree that was alive but was cut down and turned into a table.
- Wood from a tree is no longer capable of carrying out life processes, so it is considered non-living, even though it was once part of a living organism.

#### 3. Living Things Can Appear to Be Non-living:
- Certain living organisms or parts of living organisms may appear non-living under specific conditions but can revive or become active again when the right conditions are met. This concept is related to dormancy, where living things enter a state of inactivity to survive harsh conditions.
- Examples:
- Fertilized Eggs: These are living but dormant until they are kept warm, at which point they hatch into new organisms.
- Seeds: Seeds are living but dormant until they receive warmth, light, and moisture, at which point they germinate and grow into plants.
- Yeast: Yeast is a living organism but becomes inactive without warmth and sugar. When these conditions are provided (e.g., during bread baking), yeast becomes active and ferments sugars to produce carbon dioxide, causing the dough to rise.

Final Answer:

The diagram explains the distinction between living and non-living things based on whether they carry out all seven life processes. It also highlights that some objects were once living but are now non-living (e.g., wood from a tree). Additionally, it emphasizes that living things can appear non-living under certain conditions but can revive when the right conditions are met (e.g., fertilized eggs, seeds, and yeast).

Boxed Final Answer:
\[
\boxed{\text{Living things carry out all 7 life processes, while non-living things do not. Once-living things were once living but are now non-living. Living things can appear non-living but can revive under the right conditions.}}
\]