“If a cow ate only strawberries would it’s milk taste like strawberries? was Reginalds (grade 2) question

It is amazing that a cow has four stomachs like sheep and goats. The four stomachs facilitate the process of breaking down the grass into an edible, consumable, foodstuff.  Reginald, I am sorry that I cannot suggest an experiment to test your interesting thought. Most of the strawberry you eat is organic fibre and cellulose in nature. The sugars and flavouring are quite volatile so I would imagine (don’t know) that they would not survive the four stomach processing. I am happy for you to come up with some additional information.

“Does sound bounce?” asked Molly (7)

Molly, this seems to be a question that we could investigate. I have asked my team about it.

You will now have to think of some experiment to test the ideas that my friends have come up with. See if you can get a plastic mirror and maybe a sheet of cardboard. The next task is how to see if you get a bounce. You will probably need a friend , a cardboard tube and a device to make a sound (bell, buzzer, horn or something else). Your friend can ring the bell in front of the tube and you can  then listen to see if you can hear a bounce from the mirror or cardboard. Try it and then try it again, see if you can make the test as fair as possible. If you can get it to work, try with other surfaces, paper, carpet, aluminium foil. Have fun.

Let me know how it went.

Tippy (5) asked -“Both my parents have brown eyes how come mine are blue?”

Tippy. Many thanks for your question. I shall not ask why you have asked it! It was an interesting question so I asked my friends to comment on it here, are their thoughts.

 

Many thanks team.

Tippy, one of my team mentioned the word ‘genetics’ . Genetics is all about people investigating how we become who we are, Wow. We have all come from a mum and dad (parents) and because of this we inherit (get) things from our parents which make us, us. I , for instance , think that I get my hair colour from my parents and the size of my feet (my parents had my hair colour and small feet). My brother inherited different things, height and eye colour.

Eye colour is something that like height is not inherited directly from parents or an individual parent. It could be inherited from your grandparents, AND even then the chance of linking it directly to a parent or grandparent is open to chance.

Tippy. I hope that your parents can ‘try’ to relay this answer to you. You could also carry out a little investigation of your own, good scientific practice, try making a list of people in your extended family and the colour of their eyes. You could also look at the eye colour of your friends, to find out what is the most common eye colour?

Imran(7) asks “Why do plants need soil?”

Imran, many thanks for your interesting question. I have some thoughts but I will start by asking my team.

Thanks for that team. I have had some thoughts about some of the things that MIGHT be needed by plants to help them grow. You can see my thoughts on one of my SMS pages I got 8. See how many you can get before you see my list. Did you get as many a me? Do you think they are all correct? Are there any more? Let me know by clicking on the ‘Reply’ button below.

If you are happy with your answers then how could you test them, fairly?
For example how do you do a fair test on the effect of light/darkness on a plant? What do you vary and what do you keep the same?

Good luck. Let me know how you got on.

Walter Jr. (Grade 2) asks “I’ve heard the Sun revolves around the Earth, but I’ve also heard that the Earth revolves around the Sun. Which one really happens and how do we know?”

change-mind

My turn now. The astronomers at that time had noticed some strange behaviour when they were looking at the planets. For example, when they looked closely ( over many days) at the the path that Mars was taking in the night sky they were surprised to find that it suddenly started going backwards for a short time before continuing on a forward path. It did what astronomers call a ‘retrograde loop’ .  This could not be explained by a model where the Earth was the centre of the Universe with everything orbiting around it. It could however be explained if the Sun was the centre of our small universe(Solar System) and the Earth and the rest of the planets orbited it. The retrograde loop observation is then explained by the different orbits that each planet makes around the Sun. See an example in this link.

Ciera (7) How did people first appear on Earth?

Ciera, many thanks for the question. I have decided to try to answer your question myself rather than ask my friends. They can be confusing sometimes.

I think that the best way of describing how people first appeared on the Earth is that it happened very, very slowly. We would probably not be able to recognise the first people as people like you and me. It is likely that they had a lot more hair than we have. Maybe because they lived in a much colder part of the world and they would not have houses to live in. They would however be able to talk to each other, in their own language, they would walk in an upright way, not like chimpanzees, They would be able to hunt for food and probably live in groups.

Slowly, ever so slowly they would change (evolve) and become more like us.

It is thought that the first humans appeared on Earth about 150,000 years ago.

If you have another question linked to this answer please………

Miles (age 7) asks “How come when you pull your hair out it doesn’t bleed even though it’s inside your body?”

hair follicle copy

Miles, my friends drifted of the question slightly so I would like to add a few words. Firstly no experiment this time. We cannot have you tearing your hair out looking for bloodstains. You can see from the diagram that the hair is attached to the blood system so it is very likely that removing it would create a very, very small bleed. This would most likely be contained within the follicle (the follicle is the gland/cavity in which the hair grows) so you will not be able to see it.

Hair also goes through three stages of development. In the first stage it is growing quite fast and this can last for up to 5 years. In the second phase the hair growth is transitionary. It will only last for a couple of months but during that time it loses its blood supply, so pulling it out will not cause bleeding. In the third phase the hair starts to fall out on it’s own. As you are seven years old it is likely that you have all of these phases going on at the same time.

Many thanks Miles – a fascinating question.

Year 2A asked “Do plants move?”

Do plants move? What an interesting question, Thank you Yr 2. Most plants do not seem to move on there own, so I asked my friends about this. The answer was surprising.

moving plants

If there was any movement think about why it happened. What, in the morning, on a clear day, do you see in the sky? (It’s bright and yellow) What is it’s position? What is the position of the plant? Now look at the same situation in the afternoon. Where is the Sun? What is the position of the plant you are looking at? Has it moved?

Maybe you could take a photograph of the plant in the morning and another in the afternoon.

There are some plants that move very quickly. Look at these videos

So plants do move. They may stay in the same spot but they do move in their different ways. So maybe they are a bit like us.

Class 2D asked ‘Are Clouds Living?’

This is a fascinating question so I asked my friends about it and this is what they came up with.

clouds living

Look at your collection. Do they come from something that was living or not living? Think about clouds are they like all the other living things that you see around you?  Are they like trees, are they like your pets, are they like the flies and other insects that annoy you? You must have questions, ask them, go to

Think about the things that you have collected.