PASS Tutorial Science Measurements And Use of the formula page ruler.

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PASS Tutorial Science Measurements And Use of the formula page ruler

What is on the side?  Along  Along the side of the science chart is a ruler.  What  What are the units of this ruler?  How  How many of them are there?  What  What are the smallest divisions of units called? Centimeters 20 Cm Millimeters

We need to measure...  Length in meters, or centimeters, or millimeters.  Volume of a liquid or odd shaped solid, in Liters or milliliters.  Mass remember is always in grams or Kilograms.

Typical science measurement question... The pictures above show two organisms. Measure their body lengths to the nearest tenth of a centimeter. What is the difference between the body lengths of the grasshopper and cricket? Record and bubble in your answer to the nearest tenth on the answer document. But, that’s not all, is it? It wants you to use some math also..... Difference, that means subtract, right? Okay, big – little, to the nearest 1/10...

Do you know how to read the ruler? Which of the following shows the length of a rubber strip measured precisely to 2.22 centimeters? In science, precise means repeatable. So, you should measure each line more than once!! 2.22 cm is just smaller than an inch - Just so you know!!

Pay attention to precision requested! Again, measure more than once!! 20 An ant crawled from Point A to Point B in 4.0 seconds. To the nearest tenth, what was the ant’s speed in centimeters per second? Now that you measured, use it to calculate speed! After all the real reason for math is to DO Science...

You may have noticed...  I have not given you answers today. That is because the copy that is placed on the projector is not the same ‘size’ as you have on your handout. So, our measurements will be different.

4 The picture shows the position of a ball every 0.25 second on a photogram. Using a ruler, determine the velocity of the ball. F 3.5 cm/s G 10.5 cm/s H 14.0 cm/s J 28.0 cm/s When measuring anything, make sure you measure from and to the same position, front to front or back to back..25 s What do you need to do to answer the question? Multiply your distance measured by 2, since we only measured ½ second.

Be sure you measure more than once...  The key on the science test to measuring problems, is in 9 released tests, only one question asked for just a measurement.  In order to answer correctly, you must measure correctly AND calculate correctly. Do not stop until you have actually answered the question.  Do not answer in cm if you want cm/s, calculate using your formula page.