In this experiment students will be given two Petri dishes, Radish seeds, foil, and grass seeds. They will test if seeds need light to germinate.
If seeds don’t need light to germinate then the seeds in the dark should germinate the same as the seeds in the light.
• 2 Petri dishes
• Radish seeds
• Grass seeds
• Foil (for one dish)
Independent variable: Amount of light
Dependant variable: Germination
1. Trace two Petri dishes on a paper towel that is at least four layers thick.
2. Cut out what you just traced on the paper towel.
3. Place each set of paper towels on the smaller side of each Petri dish.
4. Soak paper towels with water.
5. Put five radish seeds on each Petri dish. (Make sure the radish seeds are only on one side of the dish.
6. Put ten grass seeds on each Petri dish. (Make sure the grass seeds are on the opposite side of the radish seeds.)
7. Write your color group, lab group number, and the names of people in your group on both dishes. Also write light on one dish and dark on the other.
8. Wrap foil around the one that was labeled dark.
9. Write your color group, lab group number, and the names of people in your group on the foil.
And then you just write down your hypothesis and then write about how the lab influenced you and turn this in to your teacher and have her be amazed at your work.