Some things float, and some things sink! Whether something floats or sinks depends on its density. Density is how much "stuff" (mass) is packed into a certain amount of space (volume). If something is less dense than water, it floats. If it's more dense, it sinks. Think of a light piece of wood compared to a heavy metal spoon! 🥄
We can also think about it like this: if an object pushes aside (displaces) an amount of water that weighs more than the object itself, the object will float. This is why huge ships made of steel can float – they displace a lot of water!
Match the word to its meaning:
| Word | Meaning |
|---|---|
| 1. Float | A. How much space something takes up |
| 2. Sink | B. To rest on the surface of a liquid |
| 3. Density | C. To fall below the surface of a liquid |
| 4. Volume | D. How much "stuff" is in something |
| 5. Water | E. A liquid that things either float or sink in |
Match the numbers to the letters! (e.g., 1-A, 2-B, etc.)
Use these words to fill in the missing spaces: float, sink, water, dense, less.
If something is ______ than ______, it will ______. If something is more ______ than water, it will ______.
Imagine you have a ball of clay. If you drop it in water, it sinks. What could you do to the clay to make it float? Explain your answer.
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