📚 Topic Summary
Some things float, and some things sink! Floating means staying on top of the water, like a leaf or a boat. Sinking means going down to the bottom, like a rock or a coin. Whether something floats or sinks depends on how heavy it is compared to how much space it takes up. We call this density. Get ready to explore what floats and what sinks!
🧪 Part A: Vocabulary
Match the word with its meaning:
| Word |
Meaning |
| Float |
a) To go to the bottom of water |
| Sink |
b) How heavy something is for its size |
| Density |
c) To stay on top of water |
| Object |
d) Able to stay afloat |
| Buoyant |
e) A thing that you can see or touch |
✍️ Part B: Fill in the Blanks
Use these words to fill in the missing spaces: float, sink, water, heavy, light.
If something is very ________, it will probably ________ to the bottom of the ________. Something that is ________ for its size will ________.
🤔 Part C: Critical Thinking
Imagine you have a ball of clay. If you drop it in water, it sinks. But if you flatten the clay into a boat shape, it floats! Why does this happen?