how was the space station pentoid different from the earth that Grandpa described?
Answers
Answer:
During their stay on the International Space Station (ISS) astronauts have to continue living and working in an environment that is very different to that here on Earth. They still need to keep clean, go to the bathroom, eat and drink and keep fit and healthy. The conditions of weightlessness on the ISS mean they need to adapt these activities.
Personal hygiene
Personal hygiene
The ISS is orbiting 400 kilometres from Earth and everything needs to be taken there from Earth. This means that the astronauts have to conserve resources such as water and food and waste needs to be kept to a minimum.
In this series of video clips, ESA astronaut Frank De Winne and some of his fellow crew members, explain how they live on board the International Space Station. Attached to these video clips (filmed during the OasISS mission) are some short lessons that educators can use in the classroom.
Personal Hygiene
Hygiene is important, even on the ISS
Hygiene is important, even on the ISS
Whether you are at home, school or vacation one thing you will need to do everyday is to look after your personal hygiene. What does this mean? Well, washing yourself, brushing your teeth, using the toilet and even putting on reasonably fresh, clean clothes.
Even on the International Space Station (the ISS), astronauts need to carry out personal hygiene. In such a small space that you have to share with up to 13 people at times, things can become very unpleasant if someone is not taking care of business! Lets start with the hygiene basics:
Teeth
Looking at teeth
Looking at teeth
Why do we have teeth and what do they do? How to take care of our teeth? Why is this important? Write down all the reasons why you think teeth are useful.
Take a mirror and have a good look at your teeth. How many different kinds of teeth can you see and feel? Sharp teeth in the front of your mouth are called incisors. Pointed teeth next to them are called canines and the wider teeth with bumps are called molars.
Count how many teeth you have. Draw a picture of your teeth as you can see from the mirror.
Experiment: effect of fizzy drinks on teeth
Experiment: effect of fizzy drinks on teeth
Experiment: effect of fizzy drinks on teeth
If you have a tooth that has fallen out – like a milk tooth – place it in a glass with cola or another fizzy drink you normally would drink. Keep looking at it everyday for a week. What happens to it? Make a picture of the tooth before and after it has been in the drink. Do you know why it changes?
Can you think why it is important to limit how much fizzy drinks you consume? What is in the ‘fizz’ of the drink that spoils the tooth? Why do we use toothpaste? How often do you need to brush your teeth with toothpaste?
Answers:
There are about 20-25 teeth in the mouth of most young children.
Brushing teeth is important to prevent tooth decay and bad breath. If you stop brushing teeth your mouth will smell and your teeth will begin to hurt and develop cavities.
Fizzy drinks are acidic which can damage the enamel of the tooth. Brushing your teeth after meals with fluoride toothpaste can help prevent tooth decay and strengthen teeth. It also makes your mouth smell fresh! When you wake up in the morning, one of the first things you do is brush your teeth. Why do you need to do this?
When you eat, some of the sugar in the food stays in your mouth. Bacteria feed on this sugar and make acid. This acid dissolves the enamel of your tooth and can cause tooth decay (cavities) - this hurts (tooth ache)! You need to see a dentist regularly to check this does not happen. Everyone needs to keep their teeth healthy and clean - even astronauts in space - the dentist is very far away if they develop tooth ache!
In Space
Astronauts brush their teeth in the normal way as you do, but there is a difference! In the first video clip, look at how everything ‘floats’ around. This is because on the ISS there is no weight pulling things downwards like on earth.
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