Garden Lessons: An experiment- Do Radish Plants Need Sunlight to Live? (1st grade)
Lesson Objective(s): Plants (even sprouts!) need sunlight to live.
Ohio Curriculum Standard: Living things have basic needs.
1 Poster board with drawing of a plant in middle, top of poster says “PLANTS NEED:” (1 per class)
wooden Popsicle sticks with name of class & date planted
Several large seeding trays (or deep dish aluminum pans, or enough small compostable pots for per child)
easy-to-sow radish seeds (1 per child)
Several spray bottles with fresh water
a large box- large enough to put over 1 seeding tray (or could use another seeding tray)
sunlight vs no sunlight labels
2 fold out tables (if in garden)
radish snack- w butter & salt, plus a few unsalted/unbuttered ones
Introduction (5 mins)
Welcome everyone to garden: introduce self & grown ups
If inside/have time: read “It starts with a seed”
Show class a radish:
This is a Radish! is this radish living or non-living? (living)
What kinds of things does this plant need? (sun, water, space, air)
Once pass out whiteboard, draw a picture, or write: 4 things plants need to live- just a best guess is fine! (give a minute or so) (take photo of whiteboards after class leaves)
Activity (20 mins)
If inside Classroom:
tell group that we’re going to plant radish seeds in BOTH of these containers:
one container, we’ll leave out in the sunlight
the other- we’ll cover up with a dark cloth/cardboard box so no sunlight can get in
Split class into 2: one side has “no sunlight” container, the other has “sunlight” container.
both groups use trowels to shovel soil from buckets into container.
Both groups plant 1 radish seed per student (do demo first for how to plant)
Use squeegee bottles- count 10 sprays per student
Once done planting: Decorate “No sun” box while waiting for others to finish planting (or radish cut-outs if inside- to tape onto “no sun” box)
Plant in both cover-able container AND in greenhouse bed (no sunlight vs sunlight)
demo how to plant seed
once done planting seed, water all crops
Wrap up (5 mins)
Gather up & Check off on the “sun, space, air, water” chart with everyone:
do our no-box radish seeds have space? Sun? Air? Water?
What about our boxed-in radishes?
Make a prediction: What do we think will happen to our “sun” radishes? What about our “no sun” radishes?
Everybody wash hands/hand sanitize
Radish slice snack: radish with smidge of butter & salt