Estimate Weight in Grams and Kilograms

CCSS
Convert unit
among
different-sized
measurement
units within
AF 1.4G5.MD.1
Express simple
conversions
in standard
symbolic
form
a given measurement system (e.g., convert 5 cm to 0.05 m), and use these conversions
(e.g., ___ inches = ___ feet x 12).
in solving multi-step, real world problems.
MG 1.1
UNDERLYING SKILLS AND CONCEPTS:
estimate/measure weight (metric
units)
Choose the appropriate tools and units (metric and U.S.) and
estimate and measure the length, liquid volume, and weight/mass
of given objects.
Estimate Weight in Grams and Kilograms
a
K
ey Ide
The metric system uses
grams (g) and kilograms
(kg) to measure the
heaviness of objects.
Benchmarks for You
1 kilogram is about 2 pounds.
1 kilogram is the same as 1,000 grams.
1 kg 1,000 g
E x am p l E
1 gram is about the weight of
a large paper clip.
There are 28 grams in 1 ounce.
1
How
heavy
am I?
Mr. Dunn bought 2 kilograms of chocolate.
How many grams of chocolate did he buy?
Find 2 1,000.
2 1,000 2,000
2 kg 2,000 g
0
3
So, Mr. Dunn bought 2,000 grams of chocolate.
E x am p l E
1
2
Kilograms
2
Choose the best unit to measure the weight of a bag of apples.
A. gram
B. millimeter
C. meter
D. kilogram
To decide, look at the answer choices.
Choices B and C measure length, not weight.
Choice A is a unit for measuring very light objects.
So Choice D, kilogram, is the best unit of measure.
page 308
Chapter 26 – Lesson 4
C – © CSL Associates, Inc. All rights reserved.
To convert from larger units to smaller units,
multiply.
2 kg ■ g
Name
P RAC T I C E
Complete.
1. 3 kg 3,000 g
2. 15 kg 15,000 g
3. 25 kg 25,000 g
4. 40 kg 40,000 g
5. 13 kg 13,000 g
6. 63 kg 63,000 g
7. 6 kg 8. 27 kg 27,000 g
9. 10 kg 10,000 g
6,000 g
10. 3,000 g 3 kg
11. 500 g 0.5 kg
12. 15,000 g 15 kg
13. 1,200 g 1.2 kg
14. 31,000 g 31 kg
15. 20,000 g 20 kg
16. 57,000 g 57 kg
17. 1,000,000 g 1,000 kg
Choose the better unit of weight (mass). Circle it.
C – © CSL Associates, Inc. All rights reserved.
18. a polar bear
19. a hummingbird
20. a computer screen
gram
kilogram
liter
meter
millimeter
kilometer
gram
kilogram
gram
kilogram
milliliter
kilometer
A
A
B
B
C
B
C
D
Math
Reasoning
A
C
D
D
Logic
MR 1.1
Complete each sentence.
21. ounce is to pound as
gram
22. liter is to milliliter as
quart
23. inch is to yard as
Chapter 26 – Lesson 4
centimeter
is to kilogram.
is to cup.
is to meter.
page 309
MCX94.HW.CL.G3.FM&Lesson.v211
8/3/04
13:57
Page 208
Name
…at home!
P RAC T I C E
Complete.
1. 4 kg 4,000 g
2. 12 kg 12,000 g
3. 15 kg 15,000 g
4. 20 kg 20,000 g
5. 11 kg 11,000 g
6. 49 kg 49,000 g
7. 5 kg 8. 23 kg 23,000 g
9. 30 kg 30,000 g
5,000 g
10. 2,000 g 2 kg
11. 300 g 0.3 kg
12. 12,000 g 12 kg
13. 1,500 g 1.5 kg
14. 22,000 g 22 kg
15. 30,000 g 30 kg
16. 46,000 g 46 kg
17. 2,000,000 g 2,000 kg
Choose the better unit of weight (mass). Circle it.
19. a mouse
gram
kilogram
milliliter
kilometer
gram
kilogram
liter
centimeter
A
F
B
G
C
C
D
Math
Reasoning
20. a microwave oven
D
Logic
A
B
C
D
MR 1.1
Complete each sentence.
21. ounce is to pound as gram is to
kilogram
22. liter is to milliliter as quart is to
cup
23. inch is to yard as centimeter is to
meter
page 208
millimeter
kilometer
gram
kilogram
Home Resource and Homework
Chapter 26 Lesson 4
C – © CSL Associates, Inc. All rights reserved.
18. a zebra
MCX94TEG3Ch01_32.v8.9.3 2/21/01 14:51 Page 569
Name
P RAC T I C E
Complete.
1. 3 kg 3,000 g
2. 15 kg 15,000 g
3. 25 kg 25,000 g
4. 40 kg 40,000 g
5. 13 kg 13,000 g
6. 63 kg 63,000 g
7. 6 kg 8. 27 kg 27,000 g
9. 10 kg 10,000 g
6,000 g
10. 3,000 g 3 kg
11. 500 g 0.5 kg
12. 15,000 g 15 kg
13. 1,200 g 1.2 kg
14. 31,000 g 31 kg
15. 20,000 g 20 kg
16. 57,000 g 57 kg
17. 1,000,000 g 1,000 kg
Choose the better unit of weight (mass). Circle it.
C – © CSL Associates, Inc. All rights reserved.
18. a polar bear
19. a hummingbird
20. a computer screen
gram
kilogram
liter
meter
millimeter
kilometer
gram
kilogram
gram
kilogram
milliliter
kilometer
A
A
B
B
C
B
C
D
Math
Reasoning
A
C
D
D
Logic
MR 1.1
Complete each sentence.
21. ounce is to pound as
gram
22. liter is to milliliter as
quart
23. inch is to yard as
Chapter 26 – Lesson 4
centimeter
is to kilogram.
is to cup.
is to meter.
Student Book Page
page 309
Name
…at home!
P RAC T I C E
Complete.
1. 4 kg 4,000 g
2. 12 kg 12,000 g
3. 15 kg 15,000 g
4. 20 kg 20,000 g
5. 11 kg 11,000 g
6. 49 kg 49,000 g
7. 5 kg 8. 23 kg 23,000 g
9. 30 kg 30,000 g
5,000 g
10. 2,000 g 2 kg
11. 300 g 0.3 kg
12. 12,000 g 12 kg
13. 1,500 g 1.5 kg
14. 22,000 g 22 kg
15. 30,000 g 30 kg
16. 46,000 g 46 kg
17. 2,000,000 g 2,000 kg
Choose the better unit of weight (mass). Circle it.
19. a mouse
gram
kilogram
milliliter
kilometer
gram
kilogram
liter
centimeter
A
F
B
G
C
C
D
Math
Reasoning
20. a microwave oven
D
Logic
A
B
C
D
MR 1.1
Complete each sentence.
21. ounce is to pound as gram is to
kilogram
22. liter is to milliliter as quart is to
cup
23. inch is to yard as centimeter is to
meter
page 208
millimeter
kilometer
gram
kilogram
Home Resource and Homework
Chapter 26 Lesson 4
C – © CSL Associates, Inc. All rights reserved.
18. a zebra