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Name:______________________ Date:__________________ Period:________________ Student Worksheet I. Metric System 1.) What metric unit would you use to measure how tall you are? ____________________ 2.) What metric unit would you use to measure how much you weigh? _________________ 3.) What metric unit would you use to measure how much water is in a container? _____________ II. Write your hypothesis here: III. Procedure What is the circumference of the heart in centimeters? ______ . _______ cm Convert this measurement into meters (m). Remember that there are 100 cm in a meter. _____________ cm ÷ 100 = ____________ m What is the mass of the heart in grams? ______ . _______ g Convert this measurement into kilograms (kg). Remember that there are 1000 g in one kg. _____________ g ÷ 1000 = ____________ kg What is the volume of the water in milliliters? ___________ ml = Volume 1 What is the volume of the water in milliliters now? ___________ ml = Volume 2 Volume 2 _____________ – Volume 1 _____________ = ________________ ml 1 Student Worksheet continued 6.) Assemble all of the data from the class in the table below. Type of animal heart Circumference (m) Mass (kg) Volume (ml) Conclusions: Think back to the hypothesis you made earlier. Do the results from the lab support your hypothesis? What is the relationship between the mass of the animal and the mass of the animal’s heart? What was the relationship between the mass of the animal and the circumference of the heart? What was the relationship between the mass of the animal and the volume of the heart? 2