Monday, April 27, 2015

7th Science - 4/27/15


https://docs.google.com/document/d/1l2GzVkHavzA2IwRXG0N6HvFtrNG7qlGUAX2McpqOu5s/pub

Homework:

Copy vocabulary words in NB. Study words for weekly quiz.

1.  density -he state or quality of being dense; compactness; closely set or crowded condition.

2.  diffusion -the spreading of something more widely.

3.  buoyancy - the ability or tendency to float in water or air or some other fluid.

4.  pressure - the continuous physical force exerted on or against an object by something in contact with it.: "the slight extra pressure he applied to her hand"

5.  Pascal’s principle - The principle stating that external static pressure exerted on a confined fluid is distributed evenly throughout the fluid.

6.  Archimedes’ principle - If the weight of the water displaced is less than the weight of the object, the object will sink

 7.  volume - the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great.: "the sewer could not cope with the volume.

8.  mass - the measure of the amount of matter an object has in it; measured in grams or kilograms.

9. matter - something that has mass which can exist in the form of a solid, liquid, gas or plasma.

10. Molecule - two or more elements that are chemically joined (Water is a molecule made from two atoms of Hydrogen and one atom of Oxygen.)

11. Conduction - the transportation of heat or electricity from one place to another directly through an object (A frying pan is warmed by a hot stove due to conduction.)


12. Plasma - a very hot, gas-like state of matter

5/30 - On LL - Textbook p. 117 #1 - 3.  Questions and answers. 

 You must show your work for #2.