🌱 Grass seed and light: the whole packet

🌱 Grass seed and light · kindergarten · 10 days of testing · about $3 · 10 minutes a sitting

My days, if the fair is 14 days away

Count back from your fair day and write in each date. Fewer days than this? The jobs share days, in this order; nothing is skipped.

Dates from my teacher

• My question is due
• Testing starts
• My results table and graph are due
• My board is due

In this packet

1. 🗓️ My project plan
2. 💭 My hypothesis
3. 🧺 Change, measure, keep the same
4. 🪜 My steps
5. 📊 My results
6. 📓 My logbook
7. ✅ My conclusion
8. ✂️ Board titles to cut out
9. 🏅 The judge's questions and my certificate

If I change where the cup of seeds sits, then how many days until we see green will ________________, because _____________________________________________

What I think will happen, in my own words:

3 levels × 3 tries at each = 9 tries in all. If anything you keep the same changes, you won't know which change made the difference.

What I need

• 🥤 Paper cups with a hole poked in the bottom: 9
• 🪴 Potting soil
• 🌾 Grass seed: a pinch for each cup
• 🥄 A spoon
• 🚰 Water from the tap
• 🖍️ Crayons or markers

Be safe: 🧼 Wash your hands after

1. Fill nine cups with soil, and sprinkle a pinch of grass seed on top of each.
2. Grown-up: Your grown-up gives each cup a spoonful of water.
3. Put three cups on a sunny window, three in a shady room and three in a dark cupboard.
4. Every morning, look at every cup. Is there any green yet?
5. Grown-up: Your grown-up gives each cup its spoonful every day.
6. Make a tick each day until a cup shows green, then count its ticks.
7. Colour a box for every day. Which place was first?

Write each number in your results table the moment you measure it.

I changed: Place   I measured: how many days until we see green (days)

MY GRAPH (a bar graph: place along the bottom, days up the side)

What I noticed: ______________________________________________

Write something every day you work on it, even the days you only gather things. More days? The three-page logbook prints from peabody.kids/science-fair/templates/logbook.

My hypothesis was ☐ right ☐ partly right ☐ not right.

I know because my numbers show:

What surprised me, or what might have gone wrong (7th and up):

Next time I would test:

Idea: Change a second thing: keep measuring for a week after the seeds come up, and see which cups stay green.

1. What made you want to ask this question? Say something like: I wanted to know: where does grass come up first: a sunny window, a shady room or a dark cupboard?
2. What did you think would happen, and why? Say something like: I thought changing where the cup of seeds sits would change how many days until we see green, and I wrote down why.
3. What did you change, and what did you measure? Say something like: I changed where the cup of seeds sits (Sunny window, Shady room, Dark cupboard) and measured how many days until we see green in days.
4. What did you keep the same, and why does that matter? Say something like: I kept the same soil and the same pinch of seed in each cup the same, so only where the cup of seeds sits was different.
5. How many times did you test it? Say something like: 3 times at each of my 3 levels, and I found the middle number.
6. What did you find out? Show me in your numbers. Say something like: Look at my table: Sunny window and Dark cupboard gave different numbers, and here's the pattern.
7. Was your hypothesis right? How do you know? Say something like: My numbers show whether I was right, partly right or not, and I can show you where.
8. Did anything go wrong, or surprise you? Say something like: One try was odd, so I did it again and wrote it in my logbook.
9. If you did it again, what would you change or test next? Say something like: I'd change a second thing: keep measuring for a week after the seeds come up, and see which cups stay green.