Units of Volume

So far you've learned units of **length **like feet and meters.

You've also learned about units of **temperature **like °F and °C.

Let's learn something new - **units of ****volume**!

**What is Volume?**

**Volume** is how much space something takes up.

Think about eating at a nice restaurant 🍔🍰. When the waitress asks:

Do you want a small, medium, or large drink?

👉 She is asking what **volume **you would like! 😺

😺 There are lots of **units **for measuring **volume**.** **

Some **units **of volume are small and convenient for **recipes **and **cooking**.

In the United States, people use these units of volume for cooking:

1tsp(teaspoon) 🥄

1tbsp(tablespoon) = 3 tsp

1c(cup) = 16 tbsp ☕️

1pt(pint) = 2 c (cups)

Fancy ice cream usually comes in small **pints** at the grocery store! 🍨

1qt(quart) = 2 pt

1gal(gallon) = 4 qt

Wow, that's a lot of units to learn!

🤓 These are called the **United States customary units.**

Just like with temperature, different parts of the world use different units of volume!

Here are the **3 countries **that use the **United States customary units**.

The **rest of the world**** (192 countries) **uses **Metric units**! They are easier to learn than the United States units. Let's take a look.

1ml(milliliter) = 20 drops of water 💧

1L(liter) = 1,000 ml 🍶

😺 **Tip:** Some parts of the world spell it as "litre", and that's okay, too!

The volume of a medium-sized milk carton is about **1 L**.

1 **cm³** (cubic centimeter) = 1 ml

Think of 1 cm³ as a small cube with 1 cm long sides. 🤓

It's about as big as your fingertip.

1 m³(cubic meters)=1000 cm³

Think of 1 m³ as a pretty big cube with 1 m long sides. 🤓

How many people do you think you could fit in **1 m³**? 🤔 You might be surprised.

👉You can fit 10 or 15 people if you cram them in! 🙈

🤓 **Remember:** 1 m is a little over 3 feet. That's how tall the average 4-year-old boy is. So that's a big unit!

We use **ml** and **L **when measuring the **volume of liquids**.

We use **cm³ **and **m³ **when measuring the **volume of containers**.

**1 ml** is the same as **20 drops of water**. **1 L** is the amount of milk inside a small **bottle**.

👉1 L i**s bigger than **1 ml.

**We use ****liters**** when measuring the volume of**** large**** amounts of liquid**:

- a bottle of unhealthy sugar water is **1 L**

- a bucket holds **10 L** of water

- a swimming pool holds **375,000 L** of water!

**We use ****milliliters**** **** to measure the volume of ****small**** amounts of liquid**:

- a **teaspoon **of water is **5 ml**

- a **cup **of tea is** 240 ml**

- a can of unhealthy sugar water is **330 ml**

Take a look at the bottles and cans inside your fridge. How many **ml** and **L** are they?

We use **cm³** when measuring how much space **small containers** like lunch boxes have.

We use **m³** when measuring how much space **large containers** like shipping containers have.

The volume of a lunchbox is about **490 cm³**. The volume of a storage container is about **40 m³**.

Even though **490** might look like a bigger number than **39**, adding a **cm³ **or** m³ **at the end of the number makes a huge difference! 😺

Great job learning about units of volume.

Try practice now. 😃

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