We included **HMH Into Math Grade 3 Answer Key PDF** **Module 17 Lesson 2 Estimate and Measure Mass **to make students experts in learning maths.

## HMH Into Math Grade 3 Module 17 Lesson 2 Answer Key Estimate and Measure Mass

I Can use metric units to estimate and measure the mass of objects.

**Spark Your Learning**

Ronan packs his backpack for school. Today, he has a book, a folder, a paper clip, and an apple to pack. Compare the objects using a pan balance. Make a drawing for each comparison. How can you describe the ways in which the objects compare to one another?

Answer:

**Turn and Talk** On a pan balance, how would the paper clip compare to the apple? Explain how you got your answer.

Answer:

The side of the pan balance on which paper clip is places will be up and the side the apple is kept will be down as the paper clip weighs leser than an apple.

**Build Understanding**

Question 1.

Look around the classroom for the items listed in the chart.

Estimate the mass of each object. Then use a pan balance, gram masses, and kilogram masses to measure the mass of each object.

Connect to Vocabulary

Mass is the amount of matter in an object. Metric units for measuring mass are a gram (g) and a kilogram (kg).

1 kilogram = 1,000 grams

A. Describe how your estimates compare to your measurements. Explain.

Answer:

My estimates are very close to my measurements.

B. Write the order of the objects from the least mass to the greatest mass.

Answer:

paper clip, ruler, eraser, pencil, pen, stapler and 3-hole punch is the order of the objects from the least mass to the greatest mass.

**Turn and Talk** How do you know when to use grams and when to use kilograms when you measure the mass of an object?

Answer:

When i measure mass of an object, if the object is very small i will use grams and if the object is big i will use kilograms to measure.

**Step It Out**

Question 2.

A baker orders a basket of apples and a wooden spoon to make apple pies. Which unit would be better for measuring the mass of each object?

A. Think about objects you know—a textbook and a paper dip. Use these objects as benchmarks for mass.

Benchmarks

Answer:

The mass of a basket of apples can be measured in kilograms and the wooden spoon can be measured in grams.

B. Estimate which benchmark’s mass is Measure the mass of the closer to the mass of the basket of basket of apples using apples. Then write grams or kilograms.

Measure the mass of the basket of apples using ___________ .

Answer:

Measure the mass of the basket of apples using kilograms.

C. Estimate which benchmark’s mass Measure the mass of the is closer to the mass of the wooden wooden spoon using spoon. Then write grams or kilograms.

Measure the mass of the wooden spoon using ___________ .

Answer:

Measure the mass of the wooden spoon using grams.

**Check Understanding**

Question 1.

List these objects in order from the least mass to the greatest mass: orange, sneaker, marker.

Answer:

The order of the objects from the least mass to the greatest mass is Marker, Orange and Sneaker.

**Choose the unit you would use to measure the mass. Write grams or kilograms.**

Question 2.

box of crayons

Answer:

Grams

Explanation:

A pack of crayons will be small in mass so, we can measure it in grams.

Question 3.

packed backpack

Answer:

Kilograms

Explanation:

A packed backpack is will be heavy so, it can be measured in kilograms.

Question 4.

banana

Answer:

Grams

Explanation:

A banana will be light in mass so, we can measure it in grams.

**On Your Own**

Question 5.

**Use Tools** Tomas is comparing the masses of four different toys. He already knows that the bag of marbles has the greatest mass. He wants to order his toys from greatest mass to least mass.

Write greater than or less than.

The mass of the cube puzzle is ___________ the mass of the yo-yo.

The mass of the cube puzzle is ___________ the mass of the football.

Answer:

List the toys in order from greatest mass to least mass.

Answer:

The mass of the cube puzzle is greater than the mass of the yo-yo.

The mass of the cube puzzle is less than the mass of the football.

**Choose the unit you would use to measure the mass. Write grams or kilograms.**

Question 6.

melon

Answer:

Kilograms

Explanation:

A melon will be heavy so, we can measure it in kilograms.

Question 7.

cell phone

Answer:

Grams

Explanation:

A cell will be less in mass so, it can be measured in grams.

Question 8.

keychain

Answer:

Grams

Explanation:

A keychain will be less in mass so, it can be measured in grams.

**I’m in a Learning Mindset!**

Do I understand how to estimate and measure mass? What do I still need to work on?

Answer: