What is gravity and why is it not in space?

Floating astronaut

 

You may have heard and seen onTwitter that the children in the main building have been learning about space recently. Some of this has been by watching clips of Commander Chris Hadfield in the International Space Station

During these clips we have looked at the effect of being away from most of Earth’s gravity, and how this effects daily routines such as washing etc. So we know that little gravity means things float but what does gravity mean on Earth, where it is stronger, and why is it stronger on Earth?

We set out to explore gravity. We started by experimenting to see if all objects are effected the same way – does everything fall?  Do some things fall faster/ slower?

We  chose our objects and made predictions:

Caoimhe chose to compare the ball and the tiny pom pom. Her prediction was that the ball would hit the ground first.
Caoimhe chose to compare the ball and the tiny pom pom. Her prediction was that the ball would hit the ground first.
Caiomhe predicted the ball would land first because "It is bumpy"
Caiomhe predicted the ball would land first because “It is bumpy”

Patrick discovered that it had to be a fair test and that the objects needed to start from the same height and at the same time. His experiment  had to be redone twice over to ensure a fair test!

Caoimhe recorded that the height would need to stay the same.
Caoimhe recorded that the height would need to stay the same.
He predicted the swing would land first as "It's heavier".
He predicted the swing would land first as “It’s heavier”.

 

We tested our hypothesis.

Frazer chose two different sized pine cones. He predicted they would "go together".
Frazer chose two different sized pine cones. He predicted they would “go together”.
"The 2 balls hit the ground first!"
“The 2 balls hit the ground first!”

 

"They fell together"
“They fell together”

But why don’t you have a look at the predictions and experiments themselves! Look at Holly’s prediction and Ryan’s prediction.

Have a look at Lauren’s experiment, Holly’s experiment, Gaby’s experiment, Amy D’s experiment and the experiments of Finn, Brandon, and An, who goes at 2!

 

So what happened?

Maybe we should ask for Ryan’s conclusions, Lyall’s gravity explanation or Isla’s conclusion.

“they all fall at the same time ’cause of gravity!” Eve

We reviewed our predictions:

"I was wrong"
, “I was wrong”

 

"I'll just do a cross because I was wrong"
“I’ll just do a cross because I was wrong”

Then we looked at hankies – two hankies the same should land at the same time – just as everything else right? Wrong! If one was scrunched up and the other flat, the air resistance made a difference, slowing the flat one.

wee science meSo everything fell at the same speed unless the air drag slowed it down. The air drag acts as an opposing force.

 

 

Hmmmm…………. what else could make an opposing force to gravity?

Thinking scientist

 

 

Want to find out more about gravity? Have a look here or here.

Why not try your own experiments and let us know how you get on!

13 thoughts on “What is gravity and why is it not in space?”

  1. Love this blog. It’s great to find out about all the fantastic science experiments the children have been involved in.

    1. Thank you! I am so glad you have enjoyed sharing our learning – don’t forget to check for new posts regularly. Hopefully I’ll get video sorted out soon #stafflearning.

    1. Aren’t they just?! I’ll try to get the videos sorted tonight to show off the really fabulous learning from today.
      Thanks for reading and commenting.

  2. This is fantastic. Its great to share this info with us.
    My son Owen has just started this wonderful nursery and I will definately be following these blogs.
    Thanks to all at Kelly Street :o)

  3. Wow! What a fantastic blog! My daughter was telling everyone all about gravity today. The learning activities are terrific.
    I also really appreciate being able to connect to the nursery in this way. Wonderful to see what they have been learning about and the ways they learn. Thank you!

    1. Thank you Elyse! We have fabulous video of Eve at work but the media is too large to upload at the moment. I am working on trying to solve this to share the incredible work the morning children did and I’ll let you know as soon as I do.

  4. That’s terrific! Thank you! I have spent a long time trying to use glow blogs for e-portfolios so I feel your pain!!

  5. This is amazing! Caoimhe talked us through all the photographs, telling us who everyone is and what happened at each experiment. Lovely to be able to see what happens at nursery and we will be following this from now on. Her big sister has watched it and just told her she is very proud of her 🙂 !!
    Well done everyone!

  6. Well done boys and girls, you have all been so busy X glad to see that you are all having a great time at nursery and learning lots of new and exciting things 😀

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