Question

A balloon rocket is made by attaching a balloon to a straw with tape. The straw is threaded onto a wire that is stretched across a room. When the air is released, the balloon travels in a direction opposite to the air flow, as shown.

Two investigations are planned with the balloon rockets. In the first investigation, a regular balloon rocket will be tested and a balloon rocket with five pennies attached to it will be tested. In the second investigation, two balloons will be attached to the same straw, facing each other. The air in these two balloons will be released at the same time. The supplies available for each investigation are shown.

A roll of tape, a spool of wire, a tape measure, pennies, a balloon pump, straws, a timer, a weighing scale, and three deflated balloons.dentify the independent and dependent variables in the first investigation by dragging and dropping the correct labels into the table.

independent variable / dependent variable.

options: amount of force on balloon rocket, movement experienced by the balloon rocket, mass of balloon rocket, direction of force on the balloon rocket

Answers

GPT-4o mini
In the first investigation, you are comparing a regular balloon rocket with a balloon rocket that has five pennies attached to it.

Here’s how the variables would be identified:

- **Independent Variable**: This is the variable that you manipulate in the investigation. In this case, it is the **mass of the balloon rocket** (comparing the standard balloon rocket versus the one with additional pennies).

- **Dependent Variable**: This is the variable that you measure as a result of changes made to the independent variable. In this case, it is the **movement experienced by the balloon rocket** (you would be measuring how far or how fast the rockets move based on the added mass).

So the final table would look like this:

| Independent Variable | Dependent Variable |
|----------------------------|----------------------------------|
| Mass of balloon rocket | Movement experienced by the balloon rocket |

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