Physical Science (8th grade) (Period 4) Assignments

unfinished classwork

page 137 #2-5

Read pg 134 and write a paragraph summarizing what you read. Also you need to define pure substance and element on your "key-term fold".

This Saturday, LACES will be having a campus beautification day. I am offering extra credit (1/2 of a homework assignment) for anyone that goes. It is being held at LACES from 9:00 a.m. until 12:00 p.m.

pg 119 #3,4,7,8

Page 113 #1-5

Winter Break Extra Credit
- Research a current event related to science.
- Write one paragraph summarizing the event.
- Write one paragraph reflecting on how the event relates to you. ( Why did you pick this current event?)
- This is due day one of your first week back from winter break. No exceptions.
-This is worth one homework grade.

Have a wonderful and safe winter break! See you in 2008!

pg. 414 #3-6

1. School to Home Activity page 414
2. pg. 419 #1 and 2

*** Test Day 3 over chapter 13 and chapter 14 sec. 2***

Standards Check Homework:

What must be true about the forces acting on an object if the motion of the object does not change?

Why must a force be exerted on an object to change its velocity?

Describe how the mass of an object is related to the object’s acceleration.

Compare the two forces needed to give the same rate of change in motion to two objects that have different masses.

Finish writing and drawing about Newton's 1st Law of Motion in the books we made today.

Thanksgiving Extra Credit:
Write down at least one scientific advancement that you are thankful for. Share it at your Thanksgiving dinner with family. Have them sign it and bring it to class next week. Happy Thanksgiving!

Assess Questions Chapter 13, section 2

1. What forces are acting on an object when it is falling at terminal velocity? What are the directions of these forces?
2. What is the unbalanced centripetal force that keeps planets in orbit around the sun?
3. More force is needed to accelerate an object of greater mass. Why, then, does a heavier object fall at the same rate as a lighter object?

Analysis questions from today's lab. Page 379 #6-9

Research information on parachutes and bring the information you find to class.

Analysis questions from the Explore Activity in class. Questions can be found on pg. 369.

Complete Poster Project.

Students started creating posters today in class that represent how different sports and activities are affected by gravity. Posters need to include examples in which gravity is beneficial and examples when gravity makes the activity harmful or more challenging.

Chapter 12 Test

Finish chapter 12 review. (#5-14)
*write the question and the answer

Internet Activity
page 353
Visit the website below and enter keyword HY7MOTW