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Natural Science Exam Questions Complete with Correct Answers
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Natural Science Exam Questions Complete with Correct Answers
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Natural ScienceElement - Answer -A substance that cannot be broken dwn into any other substances
Atom - Answer -Simplest unit of an element
Electrons - Answer -Have a -1 charge. Smaller than protons.
Neutrons - Answer -Carry a neutral charge
Protons - Answer -Carry a +1 charge.
Orbital - Answer -The 3D space that electrons orbit within.
Covalent bond - Answer -Bonding between atoms sharing electrons. Strongest type of bond.
Molecule - Answer -Two or more atoms held together by shared electrons.
Compound - Answer -Two or more atoms chemically being bound.
, Ions - Answer -Charged atoms
Ionic bond - Answer -Bond between two attracting charged atoms
Polar molecules - Answer -Molecules that are positive at one end, but negative at the other.
Hydrogen - Answer -Bond between water molecules
Endothermic - Answer -Reactions that require energy
Exothermic - Answer -Reactions that release energy
1 law of Thermodinamics - Answer -Matter can neither be created or distroyed
2 law of Thermodinamics - Answer -All reactions spread energy
Acid - Answer -A chemical that donates protons
Base - Answer -A chemical that accepts protons
Organic compounds - Answer -Compounds that contain carbon, such as hydrogen, oxygen, nitrogen,
sulfur, phosorphus, and metals
Carbohydrates - Answer -Made up of only combinations of carbon, hydrogen, and oxygen
Sugars - Answer -Made of carbohydrates
Starches - Answer -Made of carbohydrates.
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