🧊 Melting ice cubes: the whole packet

🧊 Melting ice cubes · kindergarten · 1 day of testing · free · 60 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 ice cube sits, then how many checks until it's all gone 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

• 🧊 Ice cubes, all from the same tray: 9 cubes, from the same tray
• 🍽️ Small plates or saucers, all the same: 3, all the same
• ⏱️ A stopwatch or a kitchen timer
• 🖍️ Crayons or markers

Be safe: 😎 Never look at the sun · 💧 Water

1. Grown-up: Your grown-up puts one ice cube on each of the three plates.
2. Carry one plate to the sun, one to the shade, and leave one inside on a table.
3. Set the timer for 10 minutes. When it rings, go and look at every plate.
4. Make a tick for each plate that still has some left. Then set the timer again.
5. Grown-up: When a plate has only a puddle left, your grown-up writes down its ticks.
6. Grown-up: On two more days, your grown-up sets out new ice and you test it again.
7. Colour a box for every tick. Which place took the most checks?

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

I changed: Place   I measured: how many checks until it's all gone (checks)

MY GRAPH (a bar graph: place along the bottom, checks 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: test a big cube and a crushed cube in each place.

1. What made you want to ask this question? Say something like: I wanted to know: which ice cube melts first: in the sun, in the shade or inside?
2. What did you think would happen, and why? Say something like: I thought changing where the ice cube sits would change how many checks until it's all gone, and I wrote down why.
3. What did you change, and what did you measure? Say something like: I changed where the ice cube sits (In the sun, In the shade, Inside on a table) and measured how many checks until it's all gone in checks.
4. What did you keep the same, and why does that matter? Say something like: I kept ice cubes from the same tray and the same kind of plate the same, so only where the ice cube 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: In the sun and Inside on a table 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: test a big cube and a crushed cube in each place.