Metric System
Science Daily 8/29/16 “Why Don’t Americans use the Metric System? https://www.youtube.com/watch?v=izKHWPxxTYA 1. Why don’t American’s use the metric system? 2. Do you think the U.S should switch to the Metric System? 3. Why do we need to know the Metric System? 4. Name 3 things we measure.
Americans Discover the metric system https://www.youtube.com/watch?v=JjCaRS-CABk
Scientists need a common system of measurement so they can communicate • The metric system is also called the International system of units or the SI • The metric system was invented in 1791 • The metric system is based on multiples of 10
King Henry Died _____ Drinking Chocolate Milk ______ ______ _______ _______ _______ _______ _______
What do we measure? length-measures the distance or dimensions of an object Mass- how much matter is in an object Volume- how much space matter occupies
What tools do we use to measure objects length, mass, and volume? Length- metric ruler Mass- triple beam balance Volume- graduated cylinder
What units do we measure length, mass, and volume? Length-meters Mass-grams Volume- liters
Practice problems- draw on your whiteboard 1000 mg = _________g b.1 L = ________mL c. 160 cm ________mm d. 14km_________m e. 109g=_________kg f. 250m=______km