1. Make a study of two potted plants, one growing in shade and another
growing in sun. Write your observations every week based on their growth. Plz answer this question it's really urgent
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Science Center: Home Experiments For Kids
MEASURING PLANT GROWTH WITH SUNLIGHT
March 25, 2019
Home / Science Center: Home Experiments For Kids / Measuring Plant Growth with Sunlight
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Parental Note: This experiment can be completed independently by children 8 years of age and older. The project may require some support to track plant growth and take anecdotal notes over the span of two weeks.
Additional Note: This experiment will take roughly two weeks to complete; this calculation takes into consideration both the set up time and time needed for plant growth.
Experiment Overview:
The sun is a renewable energy source that plays a pivotal role in our everyday life, from warming the earth to the water cycle, it is an essential part of our daily existence. Did you know that the sun also plays a critical role in the growth of plants? Without the sun, plants wouldn’t get the necessary food needed to grow, reproduce, and survive.
Plants need three basic things to live: sunlight, water, and carbon dioxide. Through a process called photosynthesis, the plants use the energy from the sun to convert carbon dioxide, soil nutrients, and water into food! In this experiment, we are going to 1) observe the germination of seeds and track the growth as ‘Basil’ (a herb used for seasoning) plants emerge 2) track the growth of basil seeds exposed to three different light sources (full sun, some sun, limited/no sun) and observe photosynthesis in action! Before we begin, let’s think about these three important questions:
Can a seed grow/germinate/develop into a plant with limited or no sunlight?
How do you think a seed will grow with some or partial sunlight? What do you think the plant will look like after two weeks of growth?
What will be the difference between the three sunlight exposure plants? How do you think the plants will be alike?
Experiment Materials:
1 packet of basil seeds (other seed types can be used: grass, chives, bean)
3 small plastic cups
Potting soil
1 small shovel
Watering can
Notebook & pencil
3 different growing locations: full sun, partial/some sun, no/little sun
Experiment Process:
three plastic cups full of soil
Step 1
Take three small plastic cups and fill them rough ¾ of the way with potting soil.
hand putting basil seeds into plastic cup full of soil
Step 2
Collect a small handful of basil seeds (roughly 30 seeds) and sprinkle them evenly around the top of each soil cup. Each cup should get roughly the same amount of basil seeds so that the growing conditions are consistent.
trowel placing soil in plastic cup
Step 3
Place a thin layer of soil over the seeds. The soil placed on the top of the seeds should be no thicker than ⅛ of an inch so the spouts can quickly and easily push through the soil.
Step 6
Organize a notebook for anecdotal notes. Refer to the picture below.
Note: the science notebook should allow for a small number of notes to be taken each day during the growing process. Notes such as: how much water was provided, sprouts that have begun to grow, leaf formation, the height of plants, etc. Provide space for each plant and for 14 days of notes.
Step 7
Over the span of two weeks, track the growth of the seeds and provide water when necessary. Make sure to take notes on the growth of the basil and observations that seem important.
day 6 of the experiment for the plastic cup full of soil in full sun, more growth
Results - Day 6
The growth experiment lasted 14 days. Below are the anecdotal notes and pictures that were taken throughout the plant growth.
After 6 days of growth:
Germination has occurred and small shoots pushed through the surface of the soil.
The “full sun” and “some sun” shoots are more abundant and were roughly ¼ of an inch in size.
The “little to no sun” exposure produced only two shoots that were ⅓ of an inch in size
day 6 of experiment with plastic cup full of soil in some sun, little growth