Mass and Capacity
This metric unit is best used to measure the mass of a single paperclip or a grape.
grams
This prefix means "one thousand" and is used in front of words like meter or gram to make a much larger unit.
Kilo
This is the total number of minutes in one full hour.
60
This type of angle looks like the perfect corner of a square or the letter "L", and measures exactly 90 degrees.
right angle
This is the total number of seconds in exactly 2 minutes.
120
If a small juice box holds 200 millilitres, this is the number of juice boxes you would need to equal exactly 1 litre.
5
This prefix means "one-hundredth" 1/100 which is why it takes exactly 100 of these units to fit into a base unit.
centi
If a school day starts at 8:30 a.m. and ends at 3:00 p.m., this is the short form used to show that the time is in the afternoon or evening.
p.m.
This is the name given to any angle that is smaller than a right angle (less than 90 degrees)
acute angle
If a large bottle holds 3 litres of water, this is its capacity written in millilitres.
3,000 millilitres
This is the most reasonable metric unit to measure the amount of water needed to fill a backyard swimming pool.
Litre
This prefix means "one-thousandth" 1/1000, and it is used to measure very small things, like the thickness of a fingernail or a tiny drop of liquid.
milli
This is the number of days found in a standard calendar year that is not a leap year.
365
This is the name given to any angle that is larger than a right angle but smaller than a straight line (between 90 degrees and 180 degrees).
Combining the prefix that means "one-hundredth" with the base unit for length gives you this common unit used on school rulers.
centimetre
A bag of apples has a mass of 3 kilograms. This is its mass converted into grams.
3,000 grams
Sitting right between "deca-" and "kilo-", this prefix represents exactly 100 base units.
hecto
An analogue clock shows the hour hand pointing halfway between the 4 and the 5, and the minute hand pointing directly at the 6. This is the digital time it is showing.
4:30
This is the mathematical tool or instrument you use to measure the exact number of degrees in an angle.
protractor
If you open a laptop so that the screen forms a straight line flat on the table, the screen has opened to an angle of this many degrees.
180 degrees
You have a 2-litre bottle of water. You drink 450 millilitres in the morning and 350 millilitres in the afternoon. This is the amount of water, in millilitres, left in the bottle.
1,200 mL
This prefix is the opposite of kilo-; while kilo- means multiplied by 1,000, this prefix means divided by 10 (or "one-tenth").
deci
A movie starts at 1:15 p.m. and lasts for exactly 1 hour and 45 minutes. This is the time the movie ends.
3:00p.m.
If you turn around in a full circle to face the exact same direction you started in, you have rotated this many degrees.
360 degrees
A factory can package 500 grams of cheese every minute. This is the total number of kilograms of cheese the factory can package in 10 minutes.
5 kilograms