AITLC Lesson Plan: EFFECTS OF SUNLIGHT AND WATER ON PLANT GROWTH, Grades: 7,8
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TITLE: Effects Of Water On Plant Growth
GRADE LEVELS: 7-8
AUTHOR: Mr. Frank Hacker
SCHOOL: Turkey Run School Jr.. Sr. High School
DISTRICT: Turkey Run Community Schools
APPROPRIATE GROUP SIZE(S):
Whole Class: No
Small Group: Yes
TIME REQUIRED: 20 min./day for three weeks.
- Learn how to grow plants from seed.
- Learn how to measure plant growth.
- Learn about the effects of different kinds of water on plant growth.
- Develop data recording and analysis skills.
- Understand the difference between constants and variables.
- Develop collaboration skills with peers and small groups.
INDIANA STATE ESSENTIAL SKILLS
- Science 4.3: Water types and its effect on plant growth.
MATERIALS and RESOURCES:
- AITLC Guide to Gardening
- AITLC Guide to Types of Water
- Radish seeds (or any fast germinating plant)
- Potting soil (constant)
- Three kinds of water (tap, distilled, mineral)
- Small plastic pots
- Measuring device (graduated cylinder) for water
- Sunlight (constant)
- Computer spreadsheet
- Metric ruler to measure plant growth
- Labels (for plants)
- Be familiar with the use of spreadsheets.
- Be familiar with the objectives of the exercise, proper lab procedures, and the safety expectations of lab work.
- Understand the difference between tap, distilled and mineral water (see the AITLC Guide to Types of Water).
- Students will measure equal amounts of soil for each pot used. There will be three pots of soil for each water type (tap, distilled, mineral), giving a total of nine samples per group.
- Students will consider the differences between tap, distilled and mineral water, and will make initial predictions about the effect of the different waters on plant growth.
- Students will plant three radish seeds per pot approximately one quarter inch deep.
- Each day for three weeks, the students will record the amount of plant growth in each pot, and then will give each pot 5 ml of water. Watering and growth records should start with the initial day of seeding.
- Each student must be an active member of their group. Each student will record data in his/her notebook, and will compare data with others in their group to make sure of their accuracy.
- Each day, students will also enter their plant growth data into a spreadsheet that they have prepared for the activity.
- After three weeks, students will analyze and graph data. Students will explain in words how each water effected height.
- Groups will share data to create a class database and spreadsheet.
- Construction and use of the spreadsheets.
- Validity and reasonableness of results.
- Use of proper units for data collection
- Consistency of work over the three week duration.
Students could keep the water type constant and introduce different variables, such as variety of plants, amount of sunlight, or soil types.
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