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## Texas Go Math Grade 3 Lesson 18.6 Answer Key Metric Units for Liquid Volume

**Unlock the Problem**

Liquid volume is the amount of liquid in a container. The liter (L) is the basic metric unit for measuring liquid volume. A milliliter (mL) is the metric unit to measure liquid in very small containers.

**Activity**

Materials; 1-L beaker; a bottle cap; 1-mL dropper; 2 containers; water; tape

STEP 1:

Fill a 1-liter beaker with water to the 1-liter mark.

STEP 2:

Pour 1 liter of water to fill a container. Mark the level of the water with a piece of tape. Draw the container below and name the container. Write if the container holds less than a liter, a liter, or more than a liter.

STEP 3:

Repeat Steps 1 and 2 with a different-sized container.

Container 1

Container 2

STEP 4:

Use the 1-mL dropper filled with water to fill the bottle cap. How many times did you fill the dropper?

Explain if the bottle cap is less than a milliliter, a milliliter, or more than a milliliter? ____________

Name a container that will hold a liter of water.

Will the container hold 50 bottle caps of water? Justify.

Answer:

Container 1 is a cooking pot; more than a liter.

Container 2 is a vase of less than a liter.

A water bottle will hold a liter of water.

We can fill the dropper 20 times with 1-mL dropper filled with water to fill the bottle cap.

Explanation:

Yes. The container holds at least a liter of water, a bottle cap holds a few milliliters of water which is a very small part of a liter. So, the container will hold 50 bottle caps of water.

**Math Talk**

**Mathematical Processes**

What can you say about the amount of liquid volume in each container?

Answer:

Suppose you drank a glass of orange juice. Did you drink about 4 mL or 300 mL of orange juice? Explain.

Answer:

The 4 ml would only be a few droppers full of juice and a glass would contain much more liquid, so 300 mL is a better to estimate.

**Share and Show**

**Choose the unit you would use to measure each container’s capacity. Write milliliter or liter.**

Question 1.

Answer:

milliliter

Question 2.

Answer:

liter

Question 3.

Answer:

liter

Question 4.

Answer:

liter

Question 5.

Answer:

milliliter

Question 6.

Answer:

liter

**Ginger pours punch into three 1-L bottles. Choose the metric unit to measure the liquid volume in each bottle. Write milliliter or liter.**

Question 7.

Answer:

milliliter

Question 8.

Answer:

liter

Question 9.

Answer:

milliliter

**Problem Solving**

**Use the containers for 10-13. Container A is full when 1 liter of water is poured into it.**

Question 10.

**Write Math** What if you poured 1 liter of water into Container B? Describe the way the water fills the container. Explain how you know.

Answer:

It will be almost full.

Explanation:

Container A holds 1 liter. Since Container B is shorter and wider, it will most likely hold the same amount of water.

Question 11.

**H.O.T. Reasoning** Bryson filled 2 containers full with water. One container held 2 liters and the other container held 250 milliliters. Which two containers did he fill?

Answer:

Container C and Container E.

Explanation:

Container C would hold 2 liters of water. Container E would hold 250 milliliters of water. So we compared C and E to A.

**Lesson 18.6 Metric Units of Liquid Volume Answer Key Question 12.**

**H.O.T. Evaluate** Name two containers that will be filled with about the same number of liters of water. Explain.

Answer:

Containers A and B.

Explanation:

Container A is taller than Container B, but not as wide.

Question 13.

**H.O.T.** What’s the Error? Samuel says that you can pour more liters of water into Container B than into Container D. Is he correct? Explain.

Answer:

No

Explanation:

Container B is smaller than container D. Therefore Container D is much taller, it can hold more liters of water when filled.

**Daily Assessment Task**

**Fill in the bubble for the correct answer choice.**

Question 14.

**Representations** For which container would you use milliliters to measure the amount of liquid?

Answer:

D

Question 15.

Which container has the greatest liquid volume when filled?

(A) pitcher

(B) mug

(C) bucket

(D) bottle cap

Answer:

Bucket

Explanation:

The bucket container has the greatest liquid volume when filled.

Question 16.

**Multi-Step** If the liquid in two of the bottles are poured into another container, which two will have the least combined liquid volume?

(A) C and D

(B) A and B

(C) A and C

(D) B and D

Answer:

C and D

Explanation:

C and D will have the least combined liquid volume.

**Texas Test Prep**

Question 17.

The bottles of tea are all liter bottles. Which bottle has a liter of tea?

(A) Bottle J

(B) Bottle K

(C) Bottle M

(D) Bottle L

Answer:

Bottle M

Explanation:

Bottle M has a liter of Tea.

### Texas Go Math Grade 3 Lesson 18.6 Homework and Practice Answer Key

**Choose the unit you would use to measure the capacity. Write milliliter or liter.**

Question 1.

Answer:

milliliter

Question 2.

Answer:

liter

Question 3.

Answer:

liter

Question 4.

Answer:

liter

Question 5.

Answer:

milliliter

Question 6.

Answer:

milliliter

**Problem Solving**

**Use the containers for 7-9. Container A is full when 1 liter of water is poured into it.**

Question 7.

What if you poured 1 liter of water into container C? Describe the way the water fills the container.

Answer:

The water would flow all over the sides since container C is about the same height but thinner than container A

Question 8.

Which container would hold about half of the water as in container D? Explain.

Answer:

Container E

Explanation:

Container E is about half as wide, but at the same height as container D.

Question 9.

For which containers would you use milliliters to measure the liquid volume? Explain.

Answer:

Container C and E

Explanation:

C and E are smaller or thinner than A which holds one liter, so measure their liquid volume in milliliters.

**Lesson Check**

**Fill in the bubble completely to show your answer.**

Question 10.

Which container has the least liquid volume when filled?

(A) water glass

(B) tablespoon

(C) soup bowl

(D) fish bowl

Answer:

tablespoon

Explanation:

The Tablespoon container has the least liquid volume when filled.

Question 11.

Which container would you use a liter to measure the amount of liquid?

Answer:

A

Explanation:

I would use container Option A as a liter to measure the amount of liquid.

Question 12.

The bottles of liquid are all liter bottles. Which amount of liquid would fill a juice glass?

Answer:

Option B

Explanation:

Option B amount of liquid would fill a juice glass.

Question 13.

**Multi-Step** If the liquid in two of the containers is poured into another container, which two will have the greatest combined liquid volume?

(A) E and H

(B) F and H

(C) E and F

(D) G and H

Answer:

E and F

Explanation:

E and F will have the greatest combined liquid volume.

Question 14.

**Multi-Step** Each of the containers has a capacity of 1 liter. If the liquid in two of the containers is poured into another container, which two will have a combined volume of 1 liter?

(A) C and D

(B) B and C

(C) A and D

(D) B and D

Answer:

C and D

Explanation:

C and D will have a combined volume of 1 liter.