This is how carbon dioxide is used in a fire extinguisher.
Sunday, 6 October 2013
Our birthday parties
Hurray my birthday is coming.
I am celebrating it with my brothers, Nadeem and Najmi.
I will be eight years old.
Nadeem will be five years old and
Najmi will be two years old.
I am so excited.
I hope all my friends can come to my birthday party.
How Plants Use Carbon Dioxide
We
inhale (breathe in) oxygen and exhale (breathe out) carbon dioxide
Plants
inhale carbon dioxide and exhale oxygen. We need lots of plants for oxygen..
1.
Photosynthesis. Plants change water and carbon dioxide into
sugar they can use for food.
Making Lemonade
Auntie Mabel teaches me how to make fizzy lemonade.
First we squeeze all the limes into a glass.
It is the first time I squeeze a lime..
It is very messy but fun too.
I do not like the taste of lime because it is sour.
Auntie Mabel adds some sugar to make it taste nice.
Now I wonder how to make the lime fizzy.
Making my lemonade fizzy
Making lemonade is so easy.
First you squeeze all the limes.
Add some water and sugar.
Finally add 1 teaspoon of baking soda.
Baking Soda reacts with the lime that is acid
and it starts to bubble and make carbon dioxide.
So now I know how they make fizzy soda in a can.
It is fun. I enjoy the experiment.
Carbon Dioxide
I learn how to make my balloon grow bigger without me blowing.
When I blow up a balloon, I use carbon dioxide from my mouth.
Now I can make a balloon blow without using my carbon dioxide.
First I add vinegar into an empty bottle.
I use a funnel to pour baking soda into the balloon .
I stretch the balloon over the neck of the bottle.
Then I loosen the baking powder into the bottle.
Wow the vinegar (acid) reacts with the baking powder (base)
and it starts to bubble and create carbon dioxide.
See how exciting it is?
Carbon dioxide is used for:
1. Plants to make food
2. Soda drinks
3. Fire extinguisher
4. Dry Ice to freeze ice cream
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