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Length

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Metric Units km m cm mm The basic unit of length in the metric system is the meter and is represented by a lowercase m.

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**1 centimeter = ____ millimeters**

Measuring Length How many millimeters are in 1 centimeter? 1 centimeter = ____ millimeters Which is bigger a meter stick or yard stick?

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**T. Trimpe 2008 http://sciencespot.net/**

Mass T. Trimpe

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Metric Units kg g cg mg Mass refers to the amount of matter in an object. The base unit of mass in the metric system is the gram and is represented by g.

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Volume

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Metric Units kL cL mL L Volume is the amount of space an object takes up. The base unit of volume in the metric system in the liter and is represented by L or l.

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**What is the volume of water in the cylinder? _____________mL**

Measuring Volume We will be using graduated cylinders to find the volume of liquids and other objects. Read the measurement based on the bottom of the meniscus or curve. When using a real cylinder, make sure you are eye-level with the level of the water. What is the volume of water in the cylinder? _____________mL What causes the meniscus? A concave meniscus occurs when the molecules of the liquid attract those of the container. The glass attracts the water on the sides. Top Image: Bottom Image:

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**Measuring Liquid Volume**

What is the volume of water in each cylinder? Images created at A B C Pay attention to the scales for each cylinder.

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**Measuring Solid Volume**

10 cm 9 cm 8 cm We can measure the volume of regular object using the formula length x width x height. _____ X _____ X _____ = _____ We can measure the volume of irregular object using water displacement. Amount of H2O with object = ______ About of H2O without object = ______ Difference = Volume = ______

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Temperature

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**Measuring Temperature**

In science, we will be using the Celsius scale. You should NOT be measuring in Fahrenheit for any labs during the year! Be careful when measuring temperature, because most thermometers have both scales labeled.

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30’s hot 20’s nice 10’s cold Zero’s ice!

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**How many jumps does it take?**

Ladder Method 1 2 3 KILO 1000 Units HECTO 100 Units DEKA 10 Units DECI 0.1 Unit Meters Liters Grams CENTI 0.01 Unit MILLI Unit How do you use the “ladder” method? 1st – Determine your starting point. 2nd – Count the “jumps” to your ending point. 3rd – Move the decimal the same number of jumps in the same direction. 4 km = _________ m Starting Point Ending Point How many jumps does it take? 4. 1 __. 2 __. 3 __. = 4000 m

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**_______ + ______ + _______ = ________ g**

Measuring Mass We will be using triple-beam balances to find the mass of various objects. The objects are placed on the scale and then you move the weights on the beams until you get the lines on the right-side of the scale to match up. Lastly, add up the amounts on each beam to find the total mass What would be the mass of the object measured in the picture? _______ + ______ + _______ = ________ g Click here to try an online activity Top Image: Bottom Image:

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