Air Pressure Unit

Lesson 2- Things Move Through Air

Objective

We will be able to use the scientific method to communicate observations about falling objects. 

Vocabulary Words

gravity – is what keeps you on the ground and what causes objects to fall.

air- The mixture of gases, which form the atmosphere of the Earth.

air pressure - The weight of air pressing down on earth.

Things move through the air

Birds, bats, parachutes, and helicopters are all things that move through the air.

Why are they able to fly through the air? They all have different shapes and they all have different sizes.

Move Through the Air Experiment

Directions:

gather 2 sheets of paper

leave one as is and crumble the other one

hold your arms out at the same level with the crumpled paper in one hand and the flat sheet in the other hand.

STOP! – LET’S USE THE

SCIENTIFIC METHOD.

Move Through the Air Experiment

Question – What will happen if I drop both pieces of paper at the same time?

Hypothesis- Discuss your hypothesis with a partner.

Those are all great ideas. Now we’ll see if any of them will happen.

Release both papers at the same time.

Move Through the Air Experiment

Results – What happened?

Did both pieces of paper land at the same time or different times? Discuss with your partner what you observed.

Why did they fall differently? Discuss with your partner.

Air pushes against the paper as it falls. The flat sheet has more air pushing on it and

falls more slowly than the crumpled paper.

Move Through the Air Experiment

Results – What happened?

Did both pieces of paper land at the same time or different times? Discuss with your partner what you observed.

Why did they fall differently? Discuss with your partner.

Air pushes against the paper as it falls. The flat sheet has more air pushing on it and

falls more slowly than the crumpled paper.

Things move through the air

1. How do the eagle and

fruit bat move through

the air?

2. How does the parachute

move through the air?

3. How does the helicopter

move through the air?

Making a Helicopter Twirler

Observation- Remember the paper experiment.

Question- How do helicopters stay in the air?

Prediction- using the information we just learned make a prediction. What do you think is going to happen?

DirectionsWe will make a paper helicopter / Rotor-copter.

Making a Helicopter Twirler

Draw Out a Plan

1. Make a plan. 2. How will your test

your plan?

Record Your Results

• Write down your results and observation.

Draw Your Conclusion

• Describe how things tested today move through the air.

• I think that the helicopter stayed in the air because…

• Glue your scientific method paper into your science journal.

Watch the video to learn more about air pressure and

gravity. https://www.youtube.com/watch?v=c86xKDcy-

TQ

Videos

Gravity video

https://www.youtube.com/watch?v=4ij5OgJatgc

Air pressure Video

https://www.youtube.com/watch?v=pHrCSuiz3c0