1. BALLOON POWERED ROCKETSHIPS

2. You’re going to create an air/ balloon powered rocket ship.

3. What’s the science behind all of this?

4. Force, Thrust and Pressure “To propel a rocket, some kind of force must push it forward. A force is the amount of push or pull on an object. The mechanical force that pushes a rocket or aircraft through the air is known as thrust. In this experiment, you'll make a balloon rocket that is propelled by pressure. Pressure is the amount of force exerted on an area.” In your booklet (Page 1), identify the points of Force, Thrust and Pressure on the Balloon Rocket diagram. In your booklet (Page 1), identify the points of Force, Thrust and Pressure on the Balloon Rocket diagram. http://www.sciencefriday.com/blogs/07/31/2014/balloon-rockets.html

5. That Balloon’s got GAS! When you blow up the balloon, you are filling it with gas particles. The gas particles move freely within the balloon and may collide with one another, exerting pressure on the inside of the balloon. As more gas is added to the balloon, the number of gas particles in the balloon increases, as well as the number of collisions. Can you see these gas particles and collisions happening with the human eye? In your booklet (Page 1), draw a diagram of these gas particle collisions. In your booklet (Page 1), draw a diagram of these gas particle collisions. http://www.sciencefriday.com/blogs/07/31/2014/balloon-rockets.html

6. Where does that Gas go? As the number of collisions within the balloon increases, so does the pressure within the balloon. In addition, the pressure of the gas inside the balloon becomes greater than the air pressure outside of the balloon. When you release the opening of the balloon, gas quickly escapes to equalize the pressure inside with the air pressure outside of the balloon. The escaping air exerts a force on the balloon itself. Can you think of a scenario in real life where the pressure get’s too much and you have to escape it? (HINT*: When we breathe the air has to go somewhere? Do we keep it inside our lungs?) Answer this question in your booklet. http://www.sciencefriday.com/blogs/07/31/2014/balloon-rockets.html

7. Isaac Newton Isaac Newton came up with three laws that govern our world. These laws are the Laws of Motion and the law we’re focusing on with our rockets is the third law of acceleration.

8. Newton’s Third Law of Motion "For every action, there is an equal and opposite reaction." The air trapped inside the balloon pushes out the open end, causing the balloon to move forward. The force of the air escaping is the "action"; the movement of the balloon forward is the "reaction.“ In your booklet, determine where the reaction and action take place on the balloon rocket. In your booklet, determine where the reaction and action take place on the balloon rocket. http://exploration.grc.nasa.gov/education/rocket/BottleRocket/Shari/propulsion_act.htm

9. Newton’s Theory allows us to investigate… Newton’s theory supports our experiment because the distance a rocket will travel is related to the amount of fuel (air) trapped inside the rocket engine and the properties of that fuel. This experiment will allow us to investigate how filling balloons with different amounts of air affect how far they will travel along a straight path. http://exploration.grc.nasa.gov/education/rocket/BottleRocket/Shari/propulsion_ act.htm http://exploration.grc.nasa.gov/education/rocket/BottleRocket/Shari/propulsion_ act.htm

10. Design and Technology TASK Your TASK is to select the correct materials to design and create a balloon powered rocket ship that will travel the furthest distance possible! Let’s create a rocket together!

11. Design Step 1 What materials do you think we should use to create your balloon rocket? BRAINSTORM it together and in your booklet.

12. Design Step 2 Design and draw what your rocket will look like and label the recycled materials you plan to use.

13. Design Step 3 Create your rocket ship!

14. TEST IT! Ours will be a little different: The cylinder will actually be our designed rocket.

15. TEST IT! AIM: how the materials you create your rocket ship with affect the distance travelled along a straight path. Step 1: Tie a piece of string from one object to the other in the classroom. Step 2: Put the other end of the string through the straw of your rocket ship and hold the string in a tight path. Step 3: Blow up the balloon and release it so see how far it travels. You have three attempts at this. Record what happens in the table below.

16. Record all data in this table.

17. Reflect, Evaluate and Justify your rocket and findings. 1. Was your rocket ship successful or unsuccessful, why? a/ If it was unsuccessful what would you change, to fix your rocket? b/ If it was successful, is there anything you’d change to improve your rocket? 2. Were there any patterns in the measurements of distance in your rockets travels? For example, were they generally the same? Or did the measurements change? If they changed why do you think they changed? 3. What are some other materials you could trial next time? And why would you use them?