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Dyches 5th Science

Vocabulary #3 & 4

QuestionAnswer
Buoyancy Able to float because of its shape, it is less dense than water.
Density The amount of molecules in matter that allow it to float or sink.
Magnetism The force of attraction or repel between 2 objects which are usually metal (iron, nickel, cobalt, & steel.)
Attract A force that causes objects to pull together.
Repel A force that causes objects to push back or away from one another.
Variable The one part of an experiment that you change.
Volume How much space something takes up. Measured in liters or milliliters. EX: Graduated Cylinder
Physical Change A change from one form to another without creating a new substance (EX: ice melting, cutting paper, shredding cheese.)
Chemical Change A change that produces a new substance (EX: metal rusting, food molding, vinegar and baking soda reaction.)
Physical Properties Parts of an object that can be observed using the 5 senses.