A liquid is matter that flows. A liquid does not keep its own shape. It takes the shape of its container. Pour milk into a tall glass. The milk becomes tall. Pour it into a wide bowl. The milk becomes wide!
Some liquids flow fast, like water. Some flow slowly, like honey. How fast a liquid flows is called viscosity. Honey has high viscosity. It is thick and slow. Water has low viscosity. It is thin and fast.
Some liquids do not mix. Oil floats on top of water. Oil is less dense than water. Density tells us how heavy something is for its size. The less dense liquid floats on top!
This week you will pour, time, and layer liquids like a scientist.
1. What shape does a liquid take?
2. Which flows more slowly, honey or water?
3. What happens when you pour oil into water?
4. What does viscosity tell us about a liquid?
Write what each word means in your own words.
Write "fast" or "slow" for how each liquid flows.
| Liquid | Fast or slow? |
|---|---|
| Water | |
| Honey | |
| Milk | |
| Ketchup | |
| Juice | |
| Syrup |
Write T for true or F for false in each circle.
Draw the same juice in a tall glass, a wide bowl, and a round jar.
| Question | Water | Honey |
|---|---|---|
| Thick or thin? | ||
| Flows fast or slow? | ||
| High or low viscosity? |
1. A liquid ______________ from place to place.
2. A liquid takes the shape of its ______________ .
3. How fast a liquid flows is called ______________ .
4. Thick, slow ______________ has high viscosity.
5. ______________ floats on top of water.
6. ______________ tells how heavy something is for its size.
Look in your kitchen with a grown-up. Find three liquids. Guess if each one is thick or thin. Write them below.
| Liquid | Thick or thin? | Fast or slow flow? |
|---|---|---|
You will race liquids to see which flows fastest. You will layer oil and water. Ask a grown-up for honey, oil, and water!
| I learned... | Circle one |
|---|---|
| Liquids take their container's shape | YES / NOT YET |
| What viscosity means | YES / NOT YET |
| Why oil floats on water | YES / NOT YET |