Science+2

Welcome to your class wiki! In this space, it is my hope that we will be able to creatively share with others what we are learning in class. This space is yours to collectively and collaboratively communicate your knowledge and understanding of scientific concepts.

2-19-08 we are learning about percentage by volume. its a little difficult but mrs. j is a good teacher and im sure we'll all get used to it :) after we learened about percentage of volume, we learned the percentage of mass. we are having troulble, but we will pull through.WE have a mass and volume work sheet tonight for homework and that will help us sharpen are skills on the equations.

2-21-08 Today in class we took notes on five different kinds of colloids.It was fun, we got to shake contains of milk to make butter. We also learned that butter is a colloid called emulsions.

3-5-08 Today in class we learned about frames of reference. Some of it is confusing, but when you really think about it and pay attention, it really isn't that hard. Tomorrow we are going to learn about speed, so we'll see how that goes.

3-10-08 Today in class we did a worksheet on Determining speed. The worksheet wasn't that hard but some was confusing. media type="custom" key="581443"

3-11-08 Today in scinece class we did an expirement determining how to calculate speed. We got to spring marbels from a springer and we got to build a ramp and make cars go down them. then we had to measure where they landed and divided the two numbers we found. IT WAS FUN.

3-12-08 Today in class we took notes on Acceleration and deceleration. The problems were esay to fiqure out.

3-13-08 Today we learned how to calculate acceleration by using the formula: acceleration = final velocity - initial velocity / time.

3-14-08 Today we did an expirement using tape and books and cars. it was allot of fun.

3-18-08 We learned about momentum in a collision by using marbles. As the marbles hit each other, it showed the impact of the momentum.This experiment was fun.

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3-19-08 Today we did a worksheet on motion. We practiced using the different formulas related to the motion of moving objects.

3-20-08 Today we did our study guide on motion.

3-25-08 Today we went over our study guide, and then we prepared for the test. we also went over our notes to help us.

4/7/08 today we toke notes on the law of moton. we learned that force is a push or a pull. then we did a workshet on vectors.

4/8/08 today we did a paper on vocab terms for this unit.

4/9/08 we took notes on gravity. gravity is the force that keeps us on the earth, gravity accelerates objects at 9.8m/s/s. we also learned about free fall or a place with only gravity acting on an object. last we learned that the law of universal gravitation depends on mass and distance.

We have been learning about Newton's laws of motion. He got many of his ideas from the work of Galileo. Newton made three laws about how objects move. We are using what we learned about motion to design and build cars to race. They have to use a balloon for power and must have at least three wheels. As you can see from the video clip below - we need a little more work before we are ready to race!

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