advertisement

Science 7 Kotchounian Study Guide for Mass, Volume, Density Assessment Be able to use the triple beam balance to find mass to the nearest tenth of a gram o Must make sure pointer and indicator are aligned before using so that your answer is accurate o If not aligned, turn the balance nut under the pan to adjust Be able to use a graduated cylinder to find volume to the nearest tenth of a milliliter o Cylinder should be flat on table and you should be reading the meniscus (curve in water) at eye level to get accurate readings! Know the proper units to use: o Volume – mL, L o Mass – g, Kg o Density – g/cm3 Know and be able to use the formula for finding the volume of a rectangular box o V=lwh o Units in answer are cubed (exp. cm3) Be able to describe how to use displacement to find the volume of an irregularly shaped object Density describes relationship between mass and volume Be able to use the formula d=m/v to find the density of an object o Remember to use correct units in your answer (g/cm3) Weight o Measured with a scale that tells how hard gravity is pushing on an object Be able to describe why an object on Earth and the Moon have the same mass, but their weight is different