Wednesday, April 20, 2011

Grade 7 Week 24: Types of Forces - Pressure



How do we describe pressure?

For Contract 24 students will create experiments that show pressure or fluid forces.

Grade 8 Week 23: Solutions

Contract 23 has students researching the use of road salts or conducting a solubility lab for the class.

Grade 7 Week 23: Types of Forces - Gravity and Friction

What forces act on objects? How?
Compare and contracts gravity and friciton.

Contract 23 asks students to design activities that showcase gravity or friction.

Grade 8 Week 22: Endothermic v. Exothermic Reactions

Contract 22 has you inventing a lab that demonstrates an endothermic or exothermic reaction or teach the class how to balance chemical reaction equations.

Wednesday, April 6, 2011

Grade 7 Week 22: Newton's Second and Third Laws of Motion


Newton's Laws of Motion

Explain Newton's Second Law of Motion.
F=ma

Explain Newton's Third Law of Motion.
When one object exerts a force on another object, the second object exerts a force equal and opposite on the first object.

This week's contract has you create a lab inquiry that showcases Newton's Second or Third Laws of Motion.

Grade 8 Week 21: Chemical Reactions and the Law of Conservation of Mass



What is a chemical reaction?
What types of reactions are there?
How are they different?
C2H6 + O2 à CO2 + H2O
Balance this equation.
Why must it be balanced?

Contract 21 has you inventing a lab that demonstrates a chemical reaction or teach the class how to balance chemical reaction equations.