Biology Jeopardy!�Matter & Energy Unit

Waterford Union High School

Rules

• Each team has 15 seconds to write an answer using the resources provided (e.g., dry-erase board, Google doc, scratch paper, etc.).
• Students can collaborate within their assigned teams but cannot get outside help.
• Teams automatically lose points for a round if they get help from outside their team (e.g., from another team or using notes).
• Each team either gains or loses points on each turn.

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Matter & Energy

Atoms & Molecules

Chemical Bonds

Combust.�

Challenges�

Matter & Energy

• This is the term for any gas, liquid, or solid that is made of atoms, has mass, and takes up space.
• Matter

Matter & Energy

• This is the term for anything that changes matter and is not made of atoms nor has mass.
• Energy

Matter & Energy

• These are the tiny particles that all matter is made from.
• Atoms

Matter & Energy

• This is a measure of how many atoms are found in a substance.
• Mass

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Matter & Energy

• This is the term for when multiple atoms bond together. �
• Molecule

Atoms & Molecules

• Different kinds of atoms are called...
• Elements

Atoms & Molecules

• True or false: carbon atoms can become hydrogen atoms during a biological reaction.
• False - carbon is always carbon.

Atoms & Molecules

• True or false: atoms can be destroyed during a biological reaction
• False - atoms are forever.

Atoms & Molecules

• True or false: atoms can become energy.
• False - atoms are forever; they cannot be turned into energy during a biological process.

Atoms & Molecules

• True or false - molecules can store energy.
• True - the bonds of molecules that hold atoms together are a form of chemical energy.

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Chemical Bonds

• The attraction between two atoms in a molecule is called…
• A chemical bond OR chemical energy.

Chemical Bonds

• These bonds are found between carbon atoms and between carbon and hydrogen atoms and are known as…
• High Energy Bonds

Chemical Bonds

• Substances that have high amounts of high energy bonds (such as ethanol, gasoline, and sugar) are often known as...
• Fuels

Chemical Bonds

• True or false - carbon dioxide contains high energy bonds
• False - there are no C-C or C-H bonds.

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Chemical Bonds

• True or false - chemical bonds can be turned into heat and light energy.
• True - the HEBs of ethanol are transformed into heat and light during combustion. �

Combustion

• During combustion, this is what happens to the atoms in a substance.
• The atoms rearrange with oxygen atoms to form CO2 and H2O.

Combustion

• This is what happens to the energy found in high energy bonds of a substance when combusted
• The HEBs are transformed into the heat, light, and motion of the flame.

Combustion

• This is why ethanol burns but water does not.
• Ethanol has high energy bonds (C-C and C-H) but water does not.

Combustion

• True or false - the energy of a fire primarily comes from the spark that started the fire.
• False - the energy of the flame comes from the HEBs. The spark just starts the rearrangement of atoms.

Combustion

• True or false - the energy of a fire comes from the oxygen in the air.
• False - oxygen does not contain HEBs and is not combustible. The oxygen atoms are needed to form CO2 and H2O.

Challenges

• What determines whether something can burn?
• High energy bonds

Challenges

• True or false - the number of atoms going into a combustion reaction is the same as the number of atoms that come out.
• True - atoms cannot be created or destroyed. The atoms in ethanol and oxygen are the same as the atoms in CO2 and H2O.

Challenges

• True or false - the amount of energy before a combustion reaction is the same as the amount of energy after a combustion reaction.
• True - energy cannot be created or destroyed.

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Challenges

• True or false - energy is being destroyed when a flame is put out.
• False - all that happens is that the transformation of chemical energy into heat and light is stopped.

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Challenges

• True or False - Water doesn’t burn because it contains hydrogen and oxygen.
• False - ethanol also contains oxygen and hydrogen. High energy bonds determines whether something is combustible.

FINAL JEOPARDY

• What happens to the matter and energy in ethanol when it burns?

• The atoms in ethanol and oxygen rearrange to form CO2 and H2O, which are released into the air. The energy in the high energy bonds is transformed into heat, light, and motion energy.