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What is Matter and what is it composed of?
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Matter is what the Universe is made up of (stuff used to make anything). It is composed of Elements.
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What are the 3 states of Matter?
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GAS where atoms move freely. LIQUID where atoms have less movement. SOLID atoms have very little movement.
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What is Energy?
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The ability to put matter into motion or 'do work'.
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Forms of energy?
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(Kinetic - energy in action).(Potential - inactive or stored energy).Chemical - potential energy becomes kinetic energy (nutircian absorbed thru digestion becoming "fuel to run" the body).Electrical - movements of charged particles called "ions".Mechanical - physically moving matter (riding a bike needs us to move the pedals to move the bike).Radiant - electromagnetic spectrum (xrays, infarred/heat, light, radio or ultraviolet).
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What are the four elements that make up 96% of the human body?Where do you find the symbols?
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O, C, H, N.On the periodic table. |
What are the first 20 elements on the periodic table?
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What are 'Atoms' and what are they composed of?
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Atoms are the building blocks of Matter.They are composed of 3 main 'subatomic' particles |
What is a molecule?
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Is when 2 or more Atoms bond together, forming a molecule. |
What are 2 types of chemical bonds?
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Covalent bonds - share electrons.Ionic bonds - electrons are transferred (given away or taken). |
What are 3 types of covalent bonds?
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Polar - electrons are not shared evenly.Non Polar - electrons are shared evenly.Hydrogen bond - Bridge formed between H2O molecules, proteins and DNA. |
How do Atoms bond?
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With their outer most shell called the 'Valence shell'. |
What is an 'Anion'?What is a 'Cation'?
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What is an 'Acid'?What is a 'Base'?
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Compound that increases in Hydrogen ions when dessolved in water.Compound that increases Hydroxide ions when dessolved in water. |
What is a PH scale?
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Measures Hydrogen ions in a solution. |
What is an 'organic molecule'?
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Organic molecules are the molecules that are built around chains of carbon atoms. There are four main groups of organic molecules that combine to build cells and their parts: carbohydrates, proteins, lipids, and nucleic acids.
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