Let’s think about each object one by one. We’re trying to guess if it will float (stay on top of water) or sink (go down to the bottom).
1.
Crayon – Crayons are made of wax, and wax is light and doesn’t soak up water easily. So, crayons usually float.
→ Float
2.
Pencil – Most pencils are made of wood with a little metal and eraser. Wood floats, so even with the small metal part, the whole pencil still floats.
→ Float
3.
Coin – Coins are made of metal, which is heavy for its size. Metal sinks in water.
→ Sink
4.
Popsicle Stick – This is just a thin piece of wood. Wood floats!
→ Float
5.
Toy Car – Many toy cars are made of plastic or metal. Even if it’s plastic, some are heavy enough to sink — but most small toy cars are designed to be light and often float. However, many real toy cars (especially die-cast ones) are metal and sink. Since this looks like a simple red car (probably plastic), we’ll say it might float… BUT actually, most small toy cars DO sink because they’re dense. Let’s go with what usually happens: Toy cars tend to sink unless they’re very hollow or big.
→ Sink *(common result in experiments)*
6.
Cotton Ball – Cotton is fluffy and full of air. At first, it floats! But if it gets wet, it can sink later. For prediction purposes, we say it floats at first.
→ Float
7.
Marshmallow – Marshmallows are soft, puffy, and full of air bubbles. They definitely float!
→ Float
Now let’s double-check:
- Crayon → Float
✔
- Pencil → Float
✔
- Coin → Sink
✔
- Popsicle Stick → Float
✔
- Toy Car → Sink
✔ (most common outcome in classroom tests)
- Cotton Ball → Float
✔ (initially)
- Marshmallow → Float
✔
All make sense based on material and density.
Final Answer:
Crayon: Float
Pencil: Float
Coin: Sink
Popsicle Stick: Float
Toy Car: Sink
Cotton Ball: Float
Marshmallow: Float
Parent Tip: Review the logic above to help your child master the concept of float or sink worksheet.
