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8th Grade Science
Do Now Monday, March 18, 2013
Make the weekly Do Now on page ___.
Draw a “photo” of yourself over spring break. Your photo must have 3 colors, a caption, and a description underneath it.
8th Grade Science
Today’s Schedule
1. Do Now2. BBs vs. Marbles3. Write a Law4. Video
Essential QuestionHow do we calculate and communicate the change in position, direction and speed for moving objects?
How do unbalanced forces affect the motion of an object?
How de we transform energy to make it useful?
Vocabulary
Pre-AP Grade-Level
Homework 8.6BSTEMScopes
Homework 8.6B
Quiz on Friday! Quiz on Friday!
Monday, March 18, 2013
8th Grade Science
Today we will…
8.6 (B) differentiate between speed, velocity, and acceleration
Objective:Students will be able to explain how mass and acceleration are related.
Monday, March 18, 2013
8th Grade Science
BBs vs. Marbles Monday, March 18, 2013
Move the containers with BBs and marbles from side to side and record 5 observations in your notebook on page __.
Then, copy and answer the following questions:1.What were the similarities in the motion of the BBs and the marbles?2.What were the differences in motion between the BBs and the marbles?3.Make a hypothesis about why there were differences in their motion.
8th Grade Science
Write a Law Monday, March 18, 2013
If you were going to write a rule about how objects moved based on their mass, what would you write?
As a table, write a law based upon your observations with the BBs and marbles.
8th Grade Science
Video Monday, March 18, 2013
Three Laws of Motion
8th Grade Science
After Video Monday, March 18, 2013
After watching the video, revise your law.
8th Grade Science
After Video Monday, March 18, 2013
Newton’s 2nd Law of Motion
Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
8th Grade Science
Do Now Tuesday, March 19, 2013
Jack throws a tennis ball as hard as he can across a field. Then, he throws a bowling ball across a field as fast as he can. Describe the difference between the force, acceleration, and mass of the objects.
8th Grade Science
Today’s Schedule
1. Do Now2. Video3. Acceleration
Essential QuestionHow do we calculate and communicate the change in position, direction and speed for moving objects?
How do unbalanced forces affect the motion of an object?
How de we transform energy to make it useful?
Vocabulary
Pre-AP Grade-Level
Homework 8.6BSTEMScopes
Homework 8.6B
Quiz on Friday! Quiz on Friday!
Tuesday, March 19, 2013
8th Grade Science
Today we will…
8.6 (B) differentiate between speed, velocity, and acceleration
Objective:Students will be able to define acceleration and describe how a greater force causes greater acceleration, and less mass causes greater acceleration.
Tuesday, March 19, 2013
8th Grade Science
Video
Roller coaster video
As you watch, record 3 examples of acceleration and 3 examples of deceleration.
Tuesday, March 19, 2013
8th Grade Science
AccelerationIf an object speeds up, slows down, or changes direction, the objects is accelerating. Acceleration occurs because a force acts upon an object, causing the object to change its speed or direction. Recall that a force is a push or pull. Acceleration can also be described as a change in velocity. Any object increasing or decreasing its speed or changing directions is accelerating.
On page ___,1)List at least 3 vocabulary words2)Copy the most important sentence from the reading3)Write the definition of “Acceleration” in your own words
Tuesday, March 19, 2013
8th Grade Science
Acceleration
Complete RM 9 and RM 11.
Tuesday, March 19, 2013
8th Grade Science
Do Now Wednesday & Thursday, March 20 & 21, 2013
On page 76…1.Draw a graph with an x- and y-axis.
2.Labeled the y-axis “speed”
3.Label the x-axis labeled “time”.
4.Draw a line that would show an object staying at a constant speed.
8th Grade Science
Today’s Schedule
1. Do Now2. Finish RM 9 and 113. Gum Lab4. Gallery Walk5. White Board Review
Essential QuestionHow do we calculate and communicate the change in position, direction and speed for moving objects?
How do unbalanced forces affect the motion of an object?
How de we transform energy to make it useful?
Vocabulary
Pre-AP Grade-Level
Homework 8.6BSTEMScopes DUE FRIDAY
Homework 8.6BDUE FRIDAY
Quiz on Friday! Quiz on Friday!
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Today we will…
8.6 (B) differentiate between speed, velocity, and acceleration
Objective:Students will graph acceleration on a speed vs. time graph.
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Finish RM 9 and 11
Periods 1: Grade
Period 2, 4, 5 and 6: Finish and Grade
RM 9:1.Under “Motion” write if the example is: speed, velocity, or acceleration2.Under “Justification” explain how you know that it is speed, velocity or acceleration.
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Gum Lab
Part I.a) 5 Trials- 30 seconds eachb) Analysis Questions
Part II.a) 1 Trial- 2 minutesb) Record Chomps TOTAL number of chomps every 20 seconds.c) Analysis questions
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Gum Lab
Part III.-1Trial- 1 minute-Record number of chomps every 10 seconds-Each person in group does something different:
Constant Speed Accelerate Decelerate Chomp-Stop-Chomp
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Gum Lab
Group Graph from Part III:1.Make a distance vs. time graph2.Each person is a different color3.Graph the number of chomps over time
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Gum Lab
Group Graph from Part III:
On the back of your paper…1.Make a speed vs. time graph2.Each person is a different color3.Graph the number of chomps over time
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Graph Gallery WalkWednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Scenario Practice
For each problem:-Create a distance vs time graph-Create a speed vs time graph-Write a description of the motion
A space shuttle launches heading to the moon.
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Scenario Practice
For each problem:-Create a distance vs time graph-Create a speed vs time graph-Write a description of the motion
A person hikes 20 miles in one day toward a mountain summit.
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Scenario Practice
For each problem:-Create a distance vs time graph-Create a speed vs time graph-Write a description of the motion
A car completes a 300 mile trip in 6 hours.
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Scenario Practice
For each problem:-Create a distance vs time graph-Create a speed vs time graph-Write a description of the motion
An elevator descends from the 8th floor to the 1st floor, slowing as it goes down.
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
White Board Review
Review Questions
Wednesday & Thursday, March 20 & 21, 2013
8th Grade Science
Do Now Friday, March 22, 2013
Write a 5 sentence paragraph comparing speed, velocity, and acceleration.
8th Grade Science
Today’s Schedule
1. Do Now2. Quiz 8.6B3. Isaac Newton
Essential QuestionHow do we calculate and communicate the change in position, direction and speed for moving objects?
How do unbalanced forces affect the motion of an object?
How de we transform energy to make it useful?
Vocabulary
Pre-AP Grade-Level
Homework 8.6B due today
Homework 8.6B due today
Quiz Today! Quiz Today!
Friday, March 22, 2013
8th Grade Science
Today we will…
8.6 (B) differentiate between speed, velocity, and acceleration
Objective:Students will show mastery of TEKS 8.6B.
Friday, March 22, 2013
8th Grade Science
Quiz 8.6 B
predator/prey
interactions
Friday, March 22, 2013
8th Grade Science
Isaac Newton
Read: Isaac Newton
Special Assignment
Friday, March 22, 2013
