Answer:
To design a good scientific research, there is a few things you need. You need to have an experiment first of course . You need an hypothesis, a conclusion, and research. Question,analysis, and observation.
Explanation:
If this helps : In fifth grade we did a scientific experiment that we had to present. I chose to do if bananas turned bad first under UV light or sun rays and my hypothesis was that they would turn bad under the sun-rays. My conclusion was that they didn't. My observation was written down in a notebook of what I saw with each passing day. Research was what I looked up about of course how long bananas lasted and how long they didn't.
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<span>The water cycle describes the existence and movement of water on, in, and above the Earth. Earth's water is always in movement and is always changing states, from liquid to vapor to ice and back again.</span>
They have different number of Neutrons and protons, so their masses are different
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Answer:
It is a compound made up of one Calclum atom and 2 Chloride atoms.
It comes from a synthesis based reaction:
Ca + Cl = CaCL2
The letters you see are the abbreviations of the elements taken from the periodic table of elements.
Explanation:
Answer:
he distance to a star can be found by comparing its luminosity to its apparent brightness.
Explanation: A star that is far away will be very dim compared to its luminosity. So it proves that the ratio of its luminosity to apparent brightness will be greater than for a nearby star.