1. Lesson 166 Learning Goal: (You should be able to…)
(3 weeks) Demonstrate and explain how Newton’s 3 laws apply to a balloon powered racecar
Solve a problem by designing and building a BPJR
Success Criteria: (Can you …)
Design and start building to solve the problem.

2. Organize lesson 166
LNB record Model … middle stages/new attempt?

3. Essential Questions
How are the relationships between certain variables related to motion.
How is motion affected by gravity and other forces?
How can the motion of an object be predicted from certain data about various variables?

4. Write to Think 166
Use newton’s 3rd law to explain how each of these examples moves!
A jet aircraft ‘flying’
Swimming
Walking on a footpath
A car moving
Trying to walk on ice
Hitting a wall … why doesn’t it move?!

5. LNB feedback Find the salmon sheet 1 … in SOAR today
2.5 … Needs A LOT of improvement … TODAY!
3 … OK … doing what’s needed … room for improvement.
4… Great record of progress, investigation and self reflection

6. Video documentary
Read
Wednesday

7. Purpose of today:
Continue to build your BPJR so it will work! (5m, fast, wooden block)
Start another new version … mark V?

8. Safety Tips and Instructions
BACKPACKS and BINDERS. LNB and pencil
Safety and noise …. MUST be able to hear EVERYONE! (NO AIR CALLS!)
Respect … materials, room, each other, self!
This is a science lab … not a play room! Remember this at ALL times!
Walk, carry carefully and be safe for others
Do NOT burst balloons, OR make silly noise. PLEASE!
TOOLS use at your bench, (NOT MINE!) cutting board, heavy duty board, put back so others can find them!
Glue gun area … clean, on card. HOT!
STUFF … help yourself BUT keep it neat please.
Cars MAY ONLY move from the back to the front of the room. (Not side to side or front to back … PLEASE!).
Drive on the right!!!
About min to build.
Clean up instructions with 15 mins left.
Time for recording … see salmon sheet!

9. Clear up Please DO NOT take balloons, materials, out of the lab
Leave lab as TIDY and ORGANIZED as it was when you came in.
Tools back in correct places … check your boxes!
Glue guns!
Boxes back … NEATLY stacked
Recycle OR trash
Bench, floor etc. neat and tidy. THEN …
Add to your LNB … discuss with team your findings. RECORD!! This should take at least 10 minutes!! (Also see LNB instructions and rubric … salmon sheet)
Pictures are very useful … if they are labelled!

10. Set up the lab notebook- Assessment
In your Lab note book!!!
Neat. Some someone else can read and understand your processes
Reasons for materials, design etc using Newton’s 3 Laws etc.
Daily reflection of at least 5 sentences plus …
Diagrams, drawings, pictures
Record progress/work
Record questions and problems.
Why don’t we … The acceleration …
How could we … The mass …
Shouldn’t we … The air resistance/drag …
Experimentation … what did you change (variables) and why?
Data
Conclusions

11. LNB EITHER NOT GRADED: Score 2 or less … no building next week!
Postit on page where the first piece of work about Hot Wheels or BPJR starts.
Sticking up so your teacher can see it.
NO other pages sticking out please!
ALL information NEATLY taped in!
Score 2 or less … no building next week!
OR GRADED:
Postit on page where the Thumbs up stamp is..

12. Tool Cart Organization

13. Explain the findings!
Explanations should include the answers to following questions
What makes the car move forward?
In which direction is the car moving?
In which direction is the air that rushes out the balloon moving?
What are some variables that can be manipulated to improve the car’s speed?
How will you experiment with the nozzle, letting the air out from the balloon? Why?
What have you thought about the mass of your BPRC?
What have you thought about drag or air resistance?
What have you thought about good old friction!

14. Prizes
For each class:
Fastest (average of 3) car over 5m with wooden block
Best decoration and style
Best team name and car name
Best teamwork, leadership and self direction

15. End of lesson

16. Newton’s 3rd video clip

17. Action - Reaction
The forces exerted by two objects on each other are often called an action-reaction force pair.
Either force can be considered the action force or the reaction force.
Action and reaction force pairs don’t cancel because they act on different objects.

18. Newton’s Third Law
Newton’s Third Law of Motion states: for every action force, there is an equal but opposite reaction force.
This means that when you push on a wall, the wall pushes back on you with a force equal in strength to the force you exerted.

19. Demonstration and examples
Balloon demonstration.
Push a pencil point into your hand … what do you notice? (AF and RF?)
Push your hand against the corner of the lab bench … what do you notice?
How do you swim?
What are the action-reaction force pairs for a girl kicking a soccer ball?

20. Newton’s 3rd … Explain some examples Swimming Letting a balloon go
A jet aircraft flying
A rocket taking off
A dropped apple hitting the ground
Trying to walk on ice
Walking on a footpath
A car moving
Hitting a wall
Lying on a mattress

21. Read to explain Newton’s 3rd law
Read pages 55 to 57 OR handout on bench
Use your reading strategies!
BEFORE YOU READ CLOSELY for an explanation:
Skim
Make sub titles into questions
DURING READING CLOSELY for an explanation:
Pictures in your head
Re read
AFTER YOU’VE READ CLOSELY for an explanation:
Write a summary … what are the really important parts … in your own words.
Answer your questions

22. Storage of ‘stuff’ Make sure it’s in boxes:
Spare ones on the side of the lab … help yourself.
Make sure the box has your name on it:
Markers and labels at the back of the lab
Make sure it’s in the right location:
Signs on the cupboards over the back bench to show you where.
Keep it neat and tidy please! Thank you!

23. Feed back about BPRC Lab Rubric
HOW are you persevering and working hard to achieve a level 3 for PSR?
Did you have partner voice or an outside voice while making constructive comments during the entire lab. SAFETY!
Were you on task the entire time or were you involved in side conversations with your teammates and others.
Were you able to complete the work on time and demonstrate good teamwork skills.
Were you polite and respectful towards yourself, your teacher, your team and the materials in the classroom.
Be honest with yourself and give a PSR score for yesterday’s lab.
Read the rubric and identify the areas to work on today … to achieve at least a level 3.5

24. Things to keep in mind while designing the BPJR
What are the problems you came across while trying to make the hot wheel car move with the help of balloon?
Did you experiment with the different type of nozzles? Which one worked best?
How can you make your car move from back to front instead of going from side to side?
What are the other factors you are thinking to improve upon while designing the BPJR?
Don’t forget the wooden block!
REM: The BPJR has to perform THREE times!