What is the basic unit of mass in the metric system?

Gram

What apparatus is used to find mass?

Triple Beam Balance

What is WEIGHT?

The gravitational pull on an object.

What is MASS?

The amount of matter in an object.

What happens to your weight and mass if you were on the moon?

If you were on the moon your WEIGHT would DECREASE because the amount of gravity has decreased. However, your MASS would remain the SAME.

Write the abbreviated version of the metric chart.

K H D G D C M

Depending on what is being asked the G = Gram could be changed to L = Liters(volume) M = Meters(distance)

What are the Metric Units of Mass?

kilogram

hectogram

dekagram

gram

decigram

centigram

milligram

What are the abbreviations for the metric units of mass?

kg = kilogram

hg = hectogram

dkg = dekagram

g = gram

dg = decigram

cg = centigram

mg = milligram

How many grams is 1 kilogram?

1,000 grams

How many grams is 1 hectogram?

100 grams

How many grams is 1 dekagram?

10 grams

How many grams is 1 gram?

1 gram (BASE UNIT)

How many grams is 1 decigram?

0.1 gram

OR

1/10 gram

How many grams is 1 centigram?

0.01 gram

OR

1/100 gram

How many grams is 1 milligram?

0.001 gram

OR

1/1000 gram

How many US pounds is equal to 1 kilogram?

2 US pounds

What does 1 gram of water equals?

1 cubic centimeter of water

OR

1 millimeter of water

What unit of mass would you used to measure chemicals or minerals in medication?

1 milligrams (mg)

What is the mass of a grain of sand?

1 milligrams (mg)

What is the mass of a paper clip?

1 gram (g)

What is the mass of a cantaloupe?

1 kilogram (kg)

What is the mass of a small car?

1,000 kilograms (kg)

How many milligrams would be in one gram?

0.001 mg

OR

1/1000 mg

How many grams would be in 3 kilograms?

3,000 g

TRUE or FALSE

The chemicals or minerals in medicine are measured in grams?

FALSE. The chemicals and minerals in medicine are measured in milligrams.

TRUE or FALSE

The basic unit of mass in the metric system is the gram.

True.

TRUE or FALSE

A regular sized paper clip weighs about one gram.

True.

Convert.

6.5kg = _________ g

6,500g

Convert.

0.18g = ________ cg

18cg

Convert.

19hg = ________ kg

1.9kg

Convert.

783mg = ________ g

0.783g

Add the mass of the riders.

500g + 40g + 8.2g = ________

548.2g

Add the mass of the riders.

300g + 10g + 0.9g = ________

310.9g

Add the mass of the riders.

400g + 80g + 3.1g = ________

483.1g

Add the mass of the riders.

0g + 90g + 9.9g = ________

99.9g

Add the mass of the riders.

500g + 100g + 6.2g =

606.2g

What number is the metric system is based on?

10

Which units are smaller than a gram?

milligram, centigram, decigram

What units are larger than a gram?

kilogram, hectogram, dekagram

What has the abbreviations as follows:

mg, cg, dg

milligram, centigram, decigram

What has the abbreviations as follows:

dkg, hg, kg

kilogram, hectogram, dekagram

Which is larger:

1kilogram or 1,500g

1,500g

Which is larger:

4 kilograms or 4,500 grams

4,500 gram

Which is larger:

15 hectograms or 1.5 dekagrams

15 hectograms

Which is larger:

1,200 milligrams or 1 gram

1,200 milligrams

Which is larger:

12 milligrams or 12 kilograms

12 kilograms

If one paperclip has the mass of 1 gram and 1,000 paperclips have a mass of 1 kilogram, how many kilograms are 8,000 paperclips?

8 kilograms

(you have to convert)

1 paperclip =1 gram

1,000 paperclips = 1 kilogram

8,000 paperclips = 8 kilograms

What are the 3 Mass Methods?

1. Measuring Mass Directly

2. Finding Mass by Difference

3. Measuring Out a Substance

Measuring Mass Directly

Used to find the mass of an object.

Step 1 – Place the object on the pan.

Step 2 – Zero out the TBB.

Step3 – The mass is determined by the positions of the riders. Record the mass.

Finding Mass by Difference

Used to find the mass of a liquid in a container.

Step 1 – Measure the mass of the beaker(a).

Step 2 – Pour in your liquid.

Step 3 – Measure the combined mass(b) of the beaker and the liquid.

Step 4 – Subtract the mass of the beaker(a) from the combined mass(b).

Therefore, b – a = Mass of Liquid

Measuring Out a Substance

Used to obtain a specific amount of a substance.

Step 1 – Find the mass of a paper plate. Record mass.

Step 2 – Add the mass of the paper plate to the desired mass of the substance.

Step 3 – Preset the riders to the amount (the sum) in Step 2.

Step 4 – The substance is then placed on the paper plate a little at a time until the zero pointer is balanced with the zero point.

The mass method used to find the mass of a solid object is…

Measuring Mass Directly

The mass method used to obtain an exact amount of a solid substance is…

Measuring Out a Substance

The mass method used for finding the mass of a liquid in a container is…

Finding the Mass by Difference

Which mass method would be best to use when trying to find the mass of a pencil?

Measuring Mass Directly

Which mass method would be best to use when trying to obtain the correct amount of medication for a prescription?

Measuring Out a Substance

Suppose I want to find the mass of some water. The beaker alone weighs 95.5g. The beaker with water weighs 130.5g. What is the mass of the water alone?

Beaker with Water = 130.5g

– Beaker Alone = 95.5g

Mass of Water = 35.0g

Suppose I want to obtain 22.5g of sugar. The plate I am using weighs 8.5g. What will I need to preset my riders to?

Desired Mass = 22.5g

+ Plate Mass = 8.5g

Preset Riders to= 31g

Which state of matter is Finding Mass by Difference used for?

a) a liquid

b) a gas

c) a solid

d) a solid substance

a) a liquid

40mL of water should have a mass of…

a) 60g

b) 30g

c) 70g

d) 49g

d) 49g

Measuring Out a Substance is used to find the mass of…

a) a liquid

b) a gas

c) a solid

d) a solid substance

d) a solid substance

Identify the mathematical operation used when Measuring Out a Substance.

a) multiply

b) add

c) divide

d) subtract

b) add

Measuring Mass Directly would be used to find the mass of…

a) water

b) oxygen

c) a pencil

d) sugar

c) a pencil

Identify the mass method used to find the mass of a certain amount of liquid in a container…

a) Measuring Mass Directly

b) Measuring Out a Substance

c) Finding Mass by Difference

d) Water Displacement Method

c) Finding Mass by Difference

If a beaker alone has a mass of 90 grams and the beaker with water has a mass of 130 grams, what is the mass of the water alone?

q) 220 grams

b) 60 grams

c) 130 grams

d) 40 grams

d) 40 grams