*Testing with Balloon Rockets *

Students should already know a little something about:

- Newton's Laws

- force and thrust

This lesson will review force and Newton’s 3rd Law, while students learn about pressure/air pressure. They will create a rocket out of a balloon and propel it (carrying cargo) across a suspended string/line by increasing the air pressure inside the balloon. Students will continue their tests by changing variables. *(Most appropriate for grade levels 5-10.)*

If the students had the *WOW! Newton’s Second Law of Motion* lesson they did this balloon rocket setup, but testing is different.

__Lesson Time__: 55-60 minutes

__Student Activity__: This activity has students transporting weight (cargo) while attached to balloons across a suspended string. They will consider how balloon shapes and sizes, and cargo weight will affect the speed of the balloon.

They will continue tests by changing variables.

__Group work__: Students will work in groups of 3-4 students. In order to save time, teachers are asked to create the groups before our Wizard arrives.

__Science Standards__:

**4.PS.2: **Energy can be transferred from one location to another or can be transformed from one form to another.

**5.PS.1:** The amount of change in movement of an object is based on the mass of the object and the amount of force exerted.

**6.PS.3:** There are two categories of energy: kinetic and potential.

**6.PS.4:** An object's motion can be described by its speed and the direction in which it is moving.

**7.PS.3:** Energy can be transformed or transferred but is never lost.

**7.PS.4: **Energy can be transferred through a variety of ways.

**8.PS.2:** Forces can act to change the motion of objects.

__High School Standards__:

**P.F.1: **Newton's laws applied to complex problems.

**P.F.5: **Air resistance and drag.

**PS.FM.2: **Forces • Force diagrams • Types of forces (gravity, friction, normal, tension) • Field model for forces at a distance.

**PS.FM.3:** Dynamics (how forces affect motion) • Objects at rest • Objects moving with constant velocity • Accelerating objects.