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Kelly Ludwig Lincoln-Way High School
New Lenox IL 60451
The main objective of this Mini-teach is to show students that water is an
important physical factor (abiotic) in the environment of all living things.
petri dish forceps
stapler/staples tooth picks
paper towel/filter paper water-soaked radish seeds
vinegar-soaked radish seeds soap-soaked radish seeds
alcohol-soaked radish seeds
1. Divide your petri dish into four parts. Use the filter paper/paper towel,
tooth picks and stapler.
2. Label the four parts as follows; Water, Vinegar, Soap, Alcohol (in pencil).
3. Wet the paper towel/filter paper in the petri dish.
4. Place five water-soaked radish seeds on the part of the dish marked
5. Use your forceps, rinse off five vinegar-soaked seeds. Place them in the
part of the dish marked "Vinegar".
6. Use your forceps, rinse off five soap-soaked seeds. Place them in the
part of the dish marked "Soap".
7. Use your forceps, rinse off five alcohol-soaked seeds. Place them in the
part of the dish marked "Alcohol".
8. Cover the seeds with a wet paper towel circle or filter paper.
9. Label your petri dish (name & date). Store your experiment for a few days.
10. After a few days, examine your seeds.
At the conclusion of the Mini-teach, students will be able to answer the
1. What were the four environments of your seeds?
2. Which seeds do you predict will not grow?
3. Which seeds do you predict will grow? Explain your answer.
4. What happened to the vinegar-soaked seeds?
5. What happened to the soap-soaked seeds?
6. What happened to the alcohol-soaked seeds?
7. What happened to the water-soaked seeds?
8. Suppose you had placed five dry seeds in a dry petri dish, what would
have happened and why?
9. What must the environment provide seeds before they can grow?
10. What must all living things obtain from their environment?
Students will understand that water is an important physical factor in
the environment of all living things.