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Theory – Eggs float in salt water

This theory was given to us by the awesome Raewyn Rowney ( Si’s mum). Raewyn has been a teacher for almost 40 years and is the most resourceful person I know, so we are very lucky to have her help us out with our experimenting ideas.

The theory we are trying to figure out is that eggs float in salt water. Here is my explanation of the theory that eggs float in salt water, and Millie’s hypothesis:

So she thinks they will float. Here are a few hints to help you with your own science experiment:

To ensure our experiment had controls we –

  1. used the same sized glasses to make sure the experiment was consistent, and so it couldn’t be argued that it was the glass that made the egg do whatever it was going to do
  2. put the egg in a glass of normal tap water, as well as a glass of salt water
  3. used the same egg in both normal water and salt water
  4. did the experiment several times with different eggs to make sure it wasn’t just one egg that did whatever it was going to do

We have an explanation on how to perform an experiment here, hope it helps.

I’m going to use the hashtag #TheoryEgg for this experiment, so feel free to use it on any related posts in Facebook or Instagram.

Happy experimenting! Remember to like us on Facebook, we’re also here on my Instagram page and it you would like to share your findings you can join us at our private Facebook Group STEMatHome

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Theory results – Bugs Bunny is a Hare

Millie thinks Bugs Bunny is a hare #TheoryBugs

  • We used videos and books to explain the difference between the two species.
  • Then I showed her images of rabbits and hares, and she identified the different ones
  • Then I showed her an image of a cartoon rabbit, which she said was a rabbit
  • Then I showed her an image of Bugs, and this is what she said:

How did you go? Share with us in our private Facebook Group, or comment below. We’d love to know how you went. Don’t forget to like us on Facebook to keep up with all things Stem At Home

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Theory – Buggy Bunny is a Hare

A big thanks to Mrs Mac for another theory!

Here is how I introduced the theory to Amelia:

If you’re not sure how to run an experiment, refer to how to perform an experiment

  • As we already have a rabbit, I had to introduce Millie to the idea of a hare, so that is why I read a book with a hare in it  (“Guess how much I love you”)
  • We also looked at a video explaining hare’s and rabbit’s and their differences. Here is the video:

  • Here is what Millie learnt from that video:

https://www.youtube.com/edit?o=U&video_id=0appp7xVRn0

But where to from here? Is Bugs a hare or not?

HAPPY EXPERIMENTING!

Would be great if everyone shared their hypothesis’ (i.e. what they think the answer is) in this video’s comments feed in Facebook

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Theory results – honesty is the best policy

Millie’s hypothesis was that honesty IS the best policy, and to prove this we read a few books, one of which was “Harriet and the garden”.

In this book Harriet is playing baseball with her friends and she accidentally tramples on her neighbour’s garden, and rather than telling the truth she runs home and hides in her room. She feels terrible for a whole day, so she tells her neighbour the truth, and they work together to fix the garden. Not only doesn she feel better after this, but she has a great time with her neighbour.

It’s a very cool story. Millie was pretty happy with her findings:

If you think honesty is the best policy, there are a lot of books and you tube video out there which you could use, the more you reinforce this theory the better. And of course, its most important that caregivers believe and are honest themselves, because children mirror our own actions.

But, if you disagree with this theory we would love to hear about it and how you conducted your experiment.

So, how did you go? Do you agree with the theory?

Share with us in our private Facebook Group, or comment below. We’d love to know how you went, and like us on Facebook to keep in the loop with all things Stem At Home

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Theory – honesty is the best policy

So this one is a bit different from the last theory, but I think it could be really cool. I think younger children will say yes, but it would be interesting if the older generation disagree.

Here is our video where I explain what “honesty” is to Millie, and what she thinks her hypothesis is:

Here is a hint into one way we researched this theory:

I’m going to use the hashtag #TheoryHonesty for this experiment, so feel free to use it on any related posts.

Happy experimenting! Remember to like us on Facebook, and it you would like to share your findings you can join us at our private Facebook Group STEMatHome

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2017-06-26 theory results – we are taller in the morning than we are at night

The theory was that we are taller in the morning than at night, and Millie agreed.

Her hypothesis was that “we are taller in the morning than we are at night”.

We measured ourselves every morning and every night for a week.

We used doorway to record our measurements, which is dead straight and there’s no chance of it moving and ruining the accuracy of our recordings.

This is an example of us “eliminating our variables” to make sure our findings were sound:

  • If only Millie did the experiment, she may be the only person who shrinks during the day IN THE WHOLE WORLD. By measuring me as well, we could show it wasn’t just a Millie thing. The more people you measure, the better
  • Who’s to say you only shrink one day a week? By doing it over a week we could show that it happens often (if not every day). The longer you measure for, the better

So what were our findings? Here you go:

You could extend on this by finding out why this happens, here’s a simple video to help:

So, what were your findings? Would like to thank Mrs Mac for giving us this theory, she is a legend. Let us know, share your results in our private Facebook Group, or comment below.

Remember to like us on Facebook to keep up with all things STEM at Home

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2017-06-26 theory – we are taller in the morning than we are at night

If you’re not sure how to run an experiment, refer to how to perform an experiment

It’s not hard!

  • By measuring myself at the same time as Millie, I will be the control (as not much is going to change about me during this experiment!)
  • Millie’s hypothesis is that “we are taller in the morning than at night”.

N.B. the image is a hint showing you how we conducted our experiment

HAPPY EXPERIMENTING!

Would be great if everyone shared their hypothesis’ (i.e. what they think the answer is) in this video’s comments feed in Facebook