Hypothesis

My hypothesis is that the handball will bounce higher than the ping pong ball because it’s hollow and also the handball is made with elastic bands so when you squish it, it goes back to it’s original form. It has a rough and kind of smooth texture on the outside.

Background

The reason rubber balls bounce higher than a ping pong ball is because the molecules will want to go back to its original form. The air is like a spring in the ball, no matter how compressed it gets, it will expand back again. While in the collision, some of it will convert to heat. It’s a rubber band but in ball shape with more elasticity. The one matters most is the elasticity for it to bounce higher, since marble has more resin and least elasticity, it won’t bounce as high, but will roll further with the smooth and glass feeling on the outside and inside. It will keep bouncing even if it goes lower and lower. Here is a link to a more detailed information about elastic balls.

Equipment

• Ping pong ball
• Rubber ball
• Ruler (To measure)

Steps

1. Grab 2 balls (Different types)
2. Get a ruler
3. Stand up the ruler by it leaning against a wall
4. Drop 2 balls at the same time for it to be fair – Mr Smalley’s favorite word this week

Results

Here are the measurements

Conclusion

Well this has been a great experience to measure ping pong ball and a handball. I couldn’t measure the right height of both balls but I sent pictures of what they look like for the measurements, there are 2 rulers stacked on each other that’s why I couldn’t measure as much as I possibly can. The ping pong ball is hard to see but it’s best if I picture it, I can’t really put an arrow for where the ping pong ball is but it’s there somewhere so look closely.

Description

Hey y’all, today, we’re going to roll a ball, one is a marble, one is a ping pong ball. Check out me hypothesis to see which one roll further.

Hypothesis

I think the marble will roll further because it’s small and capable of rolling further.

Equipments

• Marble
• Ping Pong ball
• Egg cartons
• 2 rulers

Steps (Method)

So, how to roll the ping pong ball and marble.

I put egg cartons on top of each other until I get the height I want, now, I put 2 rulers next to each other, not too far from each other but probably this close –>  ||  <– (PRETEND IT’S THE RULERS) Now just roll it in between.                                                                                                                                         ||

Measurements

The marble rolled further.

Conclusion

The results showed that my hypothesis was correct. The marble went further because it’s small and capable and smooth because it’s filled with resin! Duh!

What I would changed

I maybe would’ve had changed my measurements instead of foot.

Final

We are done, the measurements are good, the steps are good and the other stuff like hypothesis etc. Reine AKA my partner for today’s activity, she has the video, it MAY not be there due to lack of people in the video and not actually the experiment. It was honestly exhausting because many people were around me and Reine’s experiment, we got mad and kept arguing how they were in the way and they didn’t move at all, also Eirmano was making me mess up my measurement when I was measuring the ping pong ball.

Description

Hey guys, today in science, we learned how to make a paper airplane and throw them to see which one goes the furthest. I think it’s going to be the smaller paper plane. (I’m correct)

Hypothesis

The small paper plane will go the furthest because my paper airplane looks so bad and it was crumbled so yea.

Steps

• Get 2 pieces of paper (A4 and A5)

• Get your Chromebook out and search up how to make a paper airplane. (Unless you know how to make it already)

• Follow the steps that the person did in the video.

• After you make your paper airplanes, record a video of you throwing and see which  one goes the furthest.

There is the video, me and Tyra were a team, she recorded me and made the small paper plane, all thanks to her it was a success!