BELL RINGER MEASUREMENTS HAVE HELPED PEOPLE RECORD AND
BELL RINGER MEASUREMENTS HAVE HELPED PEOPLE RECORD AND SHARE INFORMATION ABOUT SOME PRETTY AMAZING MOMENTS, LIKE THESE BELOW. • IN 2006 IN MAUI, HAWAII, A SURFER RODE THE BIGGEST WAVE ON RECORD: A 21 METER TALL WALL OF WATER! • GROWERS COMPETE EVERY YEAR FOR THE HEAVIEST PUMPKIN IN THE US. THE 2009 WINNER WEIGHED MORE THAN 725 KILOGRAMS. • IN THE WINTER OF 1909 A SEVER OLD FRONT HIT THE EAST COAST, INCLUDING FLORIDA. TALLAHASSEE HOLDS THE RECORD FOR THE COLDEST TEMPERATURE IN THE WHOLE STATE AT -19 DEGREES CELCIUS. ANSWER THE QUESTION BASED ON THE INFORMATION ABOVE. WHAT PROBLEMS COULD HAPPEN IF SCIENTISTS USE DIFFERENT UNITS TO MEASURE HEIGHTS? (CENTIMETERS, FEET, ETC. )
Chapter 1 Lesson 2 Measurements Science in
Key Vocabulary Metric System International System of Units (SI) Mass Weight Volume Density A standard measurement system is important because it allows scientists to cmpare data and communicate with each other about their results.
Metric System The Metric System is a measurement system based on the number 10. Modern scientists use a version of the metric system called the International System of Units (SI).
Lets apply what we know! Now I know that the standard measurement system is important because…. Write your answers down. Please do it independently and quietly.
Length A Meter (M) is the basic SI unit used for measuring length. One tool used to measure length is a metric ruler. Example: You can measure how far you kick a soccer ball in meters.
Mass is a measure of the amount of matter in an object. In SI, the basic unit for measuring mass is the Kilogram. Things that you would measure in kilograms are the mass of: Cars, Bikes, and People. (larger masses)
Weight is different than mass. Weight is a measure of the force of gravity acting on an object. A scale is used to measure weight. When you stand on a scale, gravity pulls you downward. Weight and mass are different because The mass of an object stays the same, and the weight of an object changes. EXAMPLE: On the moon the force of gravity is weaker than on earth. So you weigh less on the moon than you do on earth, but your mass is the same no matter where you are.
Get with a partner DISCUSS WITH YOUR PARTNER THE DIFFERENCE BETWEEN MASS AND WEIGHT. ON ONE SHEET OF PAPER, WRITE DOWN HOW THEY ARE THE SAME, AND HOW THEY ARE DIFFERENT. WE WILL DISUCSS AS A CLASS AFTER
VOLUME Volume is the amount of space an object or substance takes up. All objects with mass whether they are solids, liquids, or gases, have volume. In SI, the common units for measure the volume of solids include the cubic meter (m 3), and the cubic centimeter (cm 3).
Density is a measure of how much mass is contained in a given volume. Density is made up of two measurements, mass and volume. Because of that the SI unit for measuring density is kilograms per cubic meter.
Communicate working with a partner Working with a partner, come up with at least two pairs of objects that are about the same size, but have different masses.
Temperature is measured using a thermometer. A thermometer has numbers and units, or a temperature scale on it. There are two temperature scales that are used in science: The Celsius scale, and the kelvin scale. THE KELVIN SCALE IS THE BASIS FOR THE SI TEMPERATURE UNITS, AND THE KEVLIN IS THE SI UNIT FOR TEMPERATURE.
TIME Time is a measurement of the period between two events. The SECOND is the SI unit used to measure time. Clocks and watches are used to measure time. Some clocks are more accurate than others.
Lets apply “TIME” Take out a sheet of paper Clear your desk Make the best paper airplane you possibly can We will “TIME” how long your plane flies THERE WILL BE A PRIZE FOR THE AIRPLANE THAT STAYS IN THE AIR THE LONGEST AMOUNT OF TIME!
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