Elements, Molecules, Compounds and Mixtures
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| When matter changes form, like ice melting, but it stays the same substance that is a | physical change
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| When matter is being described, such as it's density or shininess, then that is a | physical property
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| When matter changes irreversibly, as in cooking, new chemical bonds can form, changing the substances and their properties, and it is a | chemical change
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| Which type of compound helps us get and store energy? | carbohydrates
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| Which type of compound are used to build new tissues, such as fingernails and muscle? | proteins
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| What do carbohydrates, lipids, nucleic acids and proteins all have in common? | they all contain carbon
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| Sugars and starches are the main types of ___? | carbohydrates
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| In a chemical reaction, you start with ___A___ and end with ___B___. | A - reactant(s) B - product(s)
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| True or False - When a powder is mixed with water, and it looks cloudy, it is a solution. | False
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| Water is a good _____ since it can dissolve many substances. | solvent
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| The three main elements that make up living things are: | Carbon, Hydrogen, Oxygen
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| The four carbon compounds in living things are: | Carbohydrates, lipids, proteins, and nucleic acids.
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| Many homes are heated with a compound called methane, or natural gas. Methane reacts with oxygen to produce carbon dioxide and water. The reactants in this reaction are _____________ and ____________. | Methane and Oxygen
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| Many homes are heated with a compound called methane, or natural gas. Methane reacts with oxygen to produce carbon dioxide and water. The products in this reaction are _____________ and ____________. | Carbon Dioxide and Water
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| Nucleic Acids are compounds made of long, repeating chains called nucleotides. _______ is a nucleic acid that contains the information cells need to make all of their proteins. | DNA
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| The two basic forms of carbohydrates are | sugar and starch
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Created by:
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