Physical Science, January 22

Objective: Name: Date: Physical Properties      Chapter 2.2 (pg. 44-49) Physical Property (pg. 44)- List four examples of physical properties. 1) 2) 3) 4) Thermal conductivity is the rate at which a substance _________________  _____________.  (pg. 45) State is the _________________ form in which a substance exists, such as solid, liquid or _________. Density is the mass per unit _______________________ of a substance. Solubility is the ability of a substance to _______________ in another substance. Ductility is the ability of a substance to be pulled into a ______________. Malleability is the ability of a substance to be ____________ or _____________________ into thin sheets. Density- In the picture in Figure 4 (pg. 46)- the liquid at the bottom of the beaker is (circle one)  more    less  dense than the other liquids in the beaker. How do you know if an object will float or sink in water? (pg. 46) What is the equation for finding density? (pg. 47) Look at Table 1 (pg 47) Which has a greater density, helium or oxygen? _____________ Which has a greater density, zinc or silver? _______________ Which has a greater density, Mercury or Pyrite? _____________ If an object had a density of .5 g/ cm3 would it sink or float in water? _______________ Physical change- (pg. 48) Write one example of physical change on an object. Sugar dissolving in water is an example of _______________ _____________.