HOW SMALL IS AN ATOM?
How small are atoms? And what's inside them?
Have a look to the video to find out the answers (pay attention: he speaks very fast!)
Have a look to the video to find out the answers (pay attention: he speaks very fast!)
AtOM DEFINITION
The smallest particle of a substance that can exist by itself.
An atom consists of a central nucleus that is usually surrounded by one or more electrons (each electron is negatively charged).
The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.
The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.
HOW TO INFLATE A BALLOON
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Students learn about gas and chemical reactions by discovering how to inflate a balloon using baking soda and vinegar. Try this experiment at home is very funny!
HOMOGENEOUS & HETEROGENEOUS MIXTURES
We are scientists!
The students of year 6, want to find out if the following mixtures are homogeneous or heterogeneous, we mix water with: salt, oil, sand, alcohol, ink, sawdust, detergent...
The students of year 6, want to find out if the following mixtures are homogeneous or heterogeneous, we mix water with: salt, oil, sand, alcohol, ink, sawdust, detergent...