Scientific Investigation

IV: depth of plant, DV: depth of water

IV: number of bubbles produced, DV: number of minutes

IV: Depth of water, DV: number of bubbles produced

IV: Type of plant, DV: Temperature of water

IV: light intensity, DV: type of plant

IV: Color of light, DV: light intensity

IV: Color of light, DV: Rate of photosynthesis

IV: Light Intensity, DV: Rate of photosynthesis

If the intensity of the light increases, does the color change?

If the rate of photosynthesis increases, then the plants don't do photosynthesis

If the light intensity decreases, then the rate of photosynthesis decreases.

If the color of the light changes, then the rate of photosynthesis changes.

IV: Plant type, DV: Height of plant

IV: earthworms, DV: Plant growth

IV: Plant growth, DV: Plant type

IV: Photosynthesis, DV: Plant type

If the number of earthworms increases, then the plant height increases.

If the plant height increases, then the number of earthworms decreases

If the earthworms increase, the number green bean plants will decrease

If tomato plants increase, the number of green bean plants will increase.

When tomato plants are grown, green bean plants cannot grow.

Plants grow taller without earthworms in the soil.

Earthworms increase the number of radishes.

When earthworms are present, plants grow taller