What are stars?
Hot bodies of glowing gas born out of Nebule
nebule: huge, diffuse clouds of gas and dust in intergalactic space
intergalactic space= existing or occurring between galaxies + space;
Color of a star
The color of a star is determined by its temperature.
HOTTEST STARS= blue in color
COLDEST STARS= red in color
Surface temperature of Sun = 5500 degree Celcius (yellow color)
Energy in a star
The energy produced in the star is by nuclear fusion in its core.
Nuclear fusion
A nuclear reaction in which two atomic nuclei combine/collide at a very high speed to form a new type of atomic nucleus with the release of energy
nuclei: plural of nucleus
nucleus: protons (positively charged particles) + neutrons (neutrally charged particles)
Almost all the mass of an atom is located in the nucleus with a small contribution from the electron cloud.
atom: basic building blocks of matter
electron cloud: group of electrons revolving around the nucleus of an atom/ cloudlike group of electrons
electrons: negatron/ negatively charged particle
Hot bodies of glowing gas born out of Nebule
nebule: huge, diffuse clouds of gas and dust in intergalactic space
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| NEBULA IMAGES |
intergalactic space= existing or occurring between galaxies + space;
space= vast 3-dimensional region that begins where the earth's atmosphere ends
Color of a star
The color of a star is determined by its temperature.
HOTTEST STARS= blue in color
COLDEST STARS= red in color
Surface temperature of Sun = 5500 degree Celcius (yellow color)
Energy in a star
The energy produced in the star is by nuclear fusion in its core.
Nuclear fusion
A nuclear reaction in which two atomic nuclei combine/collide at a very high speed to form a new type of atomic nucleus with the release of energy
nuclei: plural of nucleus
nucleus: protons (positively charged particles) + neutrons (neutrally charged particles)
Almost all the mass of an atom is located in the nucleus with a small contribution from the electron cloud.
atom: basic building blocks of matter
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| STRUCTURE OF AN ATOM |
electrons: negatron/ negatively charged particle
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