Stem week

Big Roars to you. We are at the end of a very special and fun week!

It has just been National STEM week. Dino wanted to know what STEM meant…  it means

‘Science, Technology, Engineering and Maths’ week!!

images-9

We both had lots of fun…we went into our new primary school and showed the children why it is important to keep clean and healthy!

handwashing

The children told us that keeping clean and healthy meant:

Washing your clothes regularly and washing your pants and socks after each day!

Unknown

Having a bath and shower regularly

0511-0901-0516-4420_Man_Singing_in_the_Shower_clipart_image

Combing your hair

A_Colorful_Cartoon_Sister_Combing_Her_Younger_Sisters_Hair_Royalty_Free_Clipart_Picture_100715-165838-716053

Cleaning your teeth

images-1

washing your face

Unknown-1

This is what the children did every morning before school

images

We then asked why it was important to keep clean?

The children found out that bacteria are everywhere…. we have good bacteria….but also some bad bacteria….

Good bacteria:

Lactobacillus are bacteria that live in the intestines of animals and help the body break down food. Probiotic yoghurts have this bacteria in to help aid normal digestion.

Unknown-2

Streptococcus

Some bacteria can digest or break down oil. When an oil tanker has spilt oil into the sea, these bacteria can remove the oil and make the sea safe once more. Here are the bacteria magnified.

images-3

By breaking down the oil, they can help save the animals that live in the water from being coated in oil and dying.

images-2

Some bacteria turn milk into cheese! How helpful! “Yum” says Dino.. “Thats my favourite food…imagine…there would be no cheese in the world if we didn’t have bacteria!”Unknown-3

Here the milk is being stirred whilst bacteria is being added. The bacteria help the milk to turn into cheese.

images-4

There are also some bad bacteria:

Tuberculosis is a disease that affects the lungs. It is caused by a bacterium. It causes 1.5 million deaths a year!!

Unknown-4 Print

Read more about World TB day here:

http://www.stoptb.org/events/world_tb_day/2013/

E.coli is also a bad bacteria that causes food poisoning. This is what E.coli looks like. Can you see the flagella that the bacteria uses to move! Dino thinks that it looks like hair!!

Unknown-5 cell-ecoli

Here are some other pictures of bacteria…some are rods, cones or spirals.

images-6 images-7 images-8

Even though there are so so so many good bacteria…it is important we keep clean to avoid being infected with the bad bacteria.

Lion told the children that we should always use a tissue when we sneeze and also wash our hands after going to the toilet and before we eat.

Unknown-6

Dino wondered if we really have to wash our hands….

So we did an experiment!

We covered the children’s hands in a special ultraviolet light…

IMG_0226

Thier hands looked clean but when we shone the UV light on their hands, their hands glowed bright blue!!!

IMG_0192

The children then washed their hands with just water!

They all thought their hands were clean and predicted that all the gel had been washed off…

but… their hands were still covered in dirt!!

IMG_0141

All of the children cried “URRGHH!!!”

IMG_0212

They then washed their hands really well with soap and water!  Thankfully, when they checked their hands this time…all the gel had gone!

The children decided that the best way to avoid getting sick and transferring germs is to wash your hands with soap and water!!

hand-washing-poster-5

how-to-wash-hands-hand-washing-3

We had a great week learning all about science!!

What did you do for STEM week?

Find out more information about STEM week activities and lots of resources and activities to do at home at the official website:

 http://www.britishscienceassociation.org/web/nsew

Big roars!  See you next week!!

Dino and Lion

Follow us on twitter:  @dinoandlionUnknown-7

Advertisements
Categories: Uncategorized | Tags: , , , , , , , , , , , , , , | Leave a comment

Post navigation

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Blog at WordPress.com.

%d bloggers like this: