name
period
scientific method scenarios
read the following scenario. then answer the following questions based on the experiment.
sandy heard that plants compete for space. she decided to test this idea. assuming that a healthier plant would grow more flowers, sandy designed the following experiment.
- she bought flower seeds and some potting soil.
- into each of 5 clay pots she put the same amount of soil.
- in the first pot she planted 2 seeds, in the second pot she planted 4 seeds, in the third pot 8 seeds, and in the fourth pot she planted 16 seeds, and in the last pot she planted 32 seeds.
- after 25 days, she determined which individual plants had the most flowers
1. state sandy’s problem (what is she trying to find out?)

2. what is the independent variable sandy is testing in this experiment?

3. what would be a good hypothesis for sandy to make at the beginning of this experiment?
a. 4 seeds will work best
b. all the plants will have the same number of flowers.
c. if the plants are given more space with less seeds in each pot, then they will grow more flowers.
4. what is the dependent variable (result) in this experiment?

5. what are the constants in experiment? list at least 3.

| number of seeds | average number of flowers on individual plants |
| ---- | ---- |
| 2 | 12 |
| 4 | 8 |
| 8 | 7 |
| 16 | 5 |
| 32 | 2 |
6. looking at her results, what can sandy conclude about how space affects the number of flowers produced?

Question

name
period
scientific method scenarios
read the following scenario. then answer the following questions based on the experiment.
sandy heard that plants compete for space. she decided to test this idea. assuming that a healthier plant would grow more flowers, sandy designed the following experiment.
- she bought flower seeds and some potting soil.
- into each of 5 clay pots she put the same amount of soil.
- in the first pot she planted 2 seeds, in the second pot she planted 4 seeds, in the third pot 8 seeds, and in the fourth pot she planted 16 seeds, and in the last pot she planted 32 seeds.
- after 25 days, she determined which individual plants had the most flowers
1. state sandy’s problem (what is she trying to find out?)

2. what is the independent variable sandy is testing in this experiment?

3. what would be a good hypothesis for sandy to make at the beginning of this experiment?
a. 4 seeds will work best
b. all the plants will have the same number of flowers.
c. if the plants are given more space with less seeds in each pot, then they will grow more flowers.
4. what is the dependent variable (result) in this experiment?

5. what are the constants in experiment? list at least 3.

| number of seeds | average number of flowers on individual plants |
| ---- | ---- |
| 2 | 12 |
| 4 | 8 |
| 8 | 7 |
| 16 | 5 |
| 32 | 2 |
6. looking at her results, what can sandy conclude about how space affects the number of flowers produced?

Accepted Answer

### Question 1
# Brief Explanations:
Sandy wants to know if plants compete for space, so she's testing how the number of seeds (which affects space per plant) impacts flower growth. So her problem is to find out if plant spacing (via seed count) affects flower production.
# Answer:
She is trying to find out if plants compete for space (or if the number of seeds planted affects the number of flowers a plant grows).

### Question 2
# Brief Explanations:
The independent variable is what's changed in the experiment. Sandy changes the number of seeds per pot, which changes the space each plant has. So the independent variable is the number of seeds planted per pot (or plant spacing, controlled by seed count).
# Answer:
The number of seeds planted in each pot (or plant spacing, as controlled by the number of seeds).

### Question 3
# Brief Explanations:
A hypothesis is a testable prediction. Option c links less seeds (more space) to more flowers, which matches the experiment's goal. Option a is too specific, option b is unlikely. So c is the best hypothesis.
# Answer:
c. If the plants are given more space with less seeds in each pot, then they will grow more flowers.

### Question 4
# Brief Explanations:
The dependent variable is the result measured. Sandy measures the number of flowers on each plant, which depends on the seed count (independent variable). So it's the number of flowers per plant.
# Answer:
The number of flowers (on individual plants)

### Question 5
# Brief Explanations:
Constants are factors kept the same. Sandy used the same soil, same pots, same time (25 days), same type of seeds, etc. We list at least 3: type of seeds, amount of soil, type of pots, time (25 days) are constants.
# Answer:
- Type of flower seeds
- Amount of potting soil in each pot
- Type of clay pots (or time the experiment ran, 25 days)

### Question 6
# Brief Explanations:
From the table, as seeds increase (space decreases), average flowers decrease. With 2 seeds (more space), flowers are 12; with 32 seeds (less space), flowers are 2. So more space (fewer seeds) leads to more flowers.
# Answer:
As the number of seeds (per pot) increases (so space per plant decreases), the average number of flowers per plant decreases. This means plants with more space (fewer seeds in the pot) produce more flowers, supporting the idea that plants compete for space.

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