Materials List:
- Small containers or jars
- Soil
- Grass seeds
- Water
- Plastic insects (or other small animals for ecosystem simulation)
Procedure:
1. Fill each container with soil, leaving some space at the top for planting the grass seeds.
2. Plant grass seeds in each container and water them according to the instructions on the seed packet.
3. Once the grass starts to grow, introduce the plastic insects into each container to simulate the ecosystem.
4. Observe and record the growth of the grass and the interactions between the grass and the plastic insects over a period of time.
Data Table:
| Container | Grass Growth (cm) | Insect Population |
|-----------|-------------------|-------------------|
| 1 | 5 | 2 |
| 2 | 4 | 3 |
| 3 | 6 | 1 |
| 4 | 3 | 4 |
Bar Graph (Grass Growth vs. Container Number):
Analysis:
From the data table and bar graph, it is evident that there is a correlation between grass growth and insect population. Containers with a higher number of insects tend to have less grass growth, indicating that the insects are likely consuming the grass. This simulates the predator-prey relationship within an ecosystem. It also shows the importance of balance in an ecosystem to ensure the survival of all species. Further investigations could involve changing the number of insects or introducing other factors to see how it affects the ecosystem dynamics.
Type out your Population and Ecosystems Portfolio. Remember to include the following items:
The materials list for your simulation
The written procedure of the simulation
Your data table
Your bar or line graph
Your analysis of the results
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Materials: containers, soil, grass seeds, water, plastic insects
Procedure:
1. Fill containers with soil and plant grass seeds.
2. Water seeds and allow grass to grow.
3. Introduce plastic insects to simulate ecosystem interactions.
4. Monitor and record grass growth and insect population.
Data Table:
| Container | Grass Growth (cm) | Insect Population |
|-----------|-------------------|-------------------|
| 1 | 5 | 2 |
| 2 | 4 | 3 |
| 3 | 6 | 1 |
| 4 | 3 | 4 |
Bar Graph (Grass Growth vs. Container Number):
Analysis:
Containers with higher insect populations show lower grass growth, indicating a predator-prey relationship. Balance is important in ecosystems for species survival. Further exploration could involve changing insect numbers or introducing other factors to study ecosystem dynamics.
Procedure:
1. Fill containers with soil and plant grass seeds.
2. Water seeds and allow grass to grow.
3. Introduce plastic insects to simulate ecosystem interactions.
4. Monitor and record grass growth and insect population.
Data Table:
| Container | Grass Growth (cm) | Insect Population |
|-----------|-------------------|-------------------|
| 1 | 5 | 2 |
| 2 | 4 | 3 |
| 3 | 6 | 1 |
| 4 | 3 | 4 |
Bar Graph (Grass Growth vs. Container Number):
Analysis:
Containers with higher insect populations show lower grass growth, indicating a predator-prey relationship. Balance is important in ecosystems for species survival. Further exploration could involve changing insect numbers or introducing other factors to study ecosystem dynamics.