Tag: Science

Ramp it up oooor down

Hypothesis

I think the marble will roll further because the marble is more heavier thus making it roll further than the ping pong ball.

Steps

Get an egg carton or a flower pot tray, and then place the newspaper on the egg carton or a flower pot tray. Add something heavy on the edge if the newspaper is light in weight, and then….BAM!!! you have yourself a DIY ramp!

Example

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Results

Roll Marble Ping pong ball
1 5 4
2 5.5 6
3 7.5 5
Average 6 5

Conclusion

In conclusion, the hypothesis was correct.  I believe the marble rolled  further than the ping pong ball because it relied on the force of gravity to eventually allow the marble to accelerate faster.

according to this article-  https://www.stem-inventions.com/sfg-roller-coaster#:~:text=The%20marble%20relies%20on%20the,track%20length%20will%20be%20longer.

 

Bye bloggers.

science paper planes 27 feb 2024

Hypothesis (What I think will happen)

I think the big plane will fly further than the small plane, as the big plane has bigger wings which will make it fly further.

Background

The first paper plane was made around 200 years ago.

The longest distance ever flown by a paper plane was 88.1 metres.

There are four forces that act on the paper plane when it is flying.

  • Thrust how fast it is pushed
  • Lift how much wing area can be pushed up
  • Gravity, pulls the plane down
  • Drag, slows the plane down

Equipment

You will need

    1. A4 paper
    2. A5 paper
    3. chalk
    4. metre stick

 

How to fold the planes ( videos by me and Andrea 🙂 )

Results

first throw : the small plane flew further than the big plane.

second throw: the big plane flew further than the small plane.

third throw: the big plane flew further than the small plane.

Conclusion

My hypothesis  was correct because the big plane flew further, I think that the big plane flew further because the big plane had bigger wings that might have gave a bigger platform for the air to push the plane further.

 

Bye bloggers:D

Kereru inquiry T3 2023: science with Miss Hanrahan.

What we learned so far: chemical reactions. by Catherine

WALT understand combining an acid and base makes a chemnical reaction

Hi people.

this week we have been doing science with different teachers, today, i was with Miss Hanrahan, we learned about gases and different chemical reactions but today we were focused on vinegar and baking soda, before i made this poster we had to get in buddies, so of course, i paired up with Andrea 😀 she tried smelling the vinegar but deeply regretted it after haha, i have also attempted to sniff it but it wasn’t the best idea 🙁

We had to go onto the deck to avoid staining the concrete/walkway, Miss Hanrahan had to go around pouring orange food dye into the vinegar to make it look like lava 😀 we all each received a little spoon of baking soda, and on the count of 1 2 and 3 we all added the baking soda into the cup and then it started to fizz up! it looked like foam and erupted from the cup :0  and then we had to make a poster which is the one i’m showing you now!:)

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