FACTS Matter & Energy - Check In 1

A log is burned on a fire. What is happening to the matter in the logs?

• The fire is consuming the matter. When the log is completely burned, the matter in the log is completely destroyed and no longer exists.
• The fire is turning the matter in the log into energy. You can see the energy as light and feel the energy as heat.
• The fire is converting most of the matter in the log into carbon dioxide and water, which is being released into the air.
• All of the above.

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NGSS.HS-PS1-7

A log is burned on a fire. What is happening to energy during the reaction?

• The fire is creating new energy by converting the matter into light and heat.
• The fire is converting the chemical energy in the molecular bonds of the wood into light, heat, and motion energy.
• The fire is converting chemical energy into heat energy, which eventually consumes all of the energy, causing it to no longer exist
• All of the above.

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NGSS.HS-PS3-4

Which of the following is TRUE?

• When something is combusted (burned), energy is given off because of the formation of molecular bonds.
• When something is combusted (burned), energy is given off because of the breaking of molecular bonds.
• When something is combusted (burned), energy is given off because of the conversion of matter into energy.

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NGSS.HS-PS1-4

Which of the following best summarizes a combustion reaction?

• The atoms in the wood molecules are being destroyed. This temporarily gives off energy, which eventually dissipates and ceases to exist.
• While energy is needed to break the atomic bonds of the wood molecules, more energy is given off by the rearrangement of those atoms to form CO2 and H2O. This excess energy is the heat, light, and motion of the flame.
• The atoms in the wood molecules are being converted into energy. This energy is the heat, light, and motion of the flame.

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How is combustion similar to what occurs when an animal digests food?

• Both reactions involve the rearrangement of carbon-based molecules into carbon dioxide and water. The formation of CO2 and H2O gives off excess energy.
• Both reactions involve the conversion of matter into energy.
• In both reactions, matter is destroyed and ceases to exist.

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NGSS.HS-PS3-1

Why is it that both fuels (like gasoline or ethanol) and calorie-rich foods (like fat or chocolate) have high amounts of C-H and C-C bonds?

• C-H and C-C bonds give off a lot of energy when they’re broken.
• C-H and C-C bonds are high energy bonds. A lot of energy is released when these atoms combine with oxygen to form CO2 and H2O.
• Carbon and Hydrogen can easily become energy.

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NGSS.HS-PS1-4

All living organisms are carbon-based. Where does this carbon come from?

• The carbon in living organisms is created by plants using oxygen.
• The carbon in living organisms is formed from the energy in high-calorie foods.
• The carbon comes from CO2 in the air, which plants make available to living organisms during photosynthesis.
• All of the above.

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NGSS.HS-LS2-5

hich of the following best describes how the dinosaurs went extinct?

• All of the dinosaurs were immediately killed when the earth was struck by an asteroid.
• Some dinosaurs were killed by an asteroid and the rest were killed by fires.
• While some dinosaurs were killed by the asteroid strike, most went extinct due to reduced rates of photosynthesis because of the large amounts of dust put into the atmosphere.

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Which of the following best describes where the mass of a plant comes from as it grows from a seed?

• The mass of a plant primarily comes from minerals in the soil.
• The mass of a plant primarily comes from CO2 in the air and water in the soil.
• The mass of a plant primarily comes from the conversion of sunlight into matter.
• The mass of a plant primarily comes from the conversion of carbon dioxide into oxygen.

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NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which of the following best describes the carbon cycle?

• Plants convert sunlight into carbon atoms. These carbon atoms are then passed onto other organisms when they consume plants.
• Plants convert oxygen atoms into carbon atoms. These carbon atoms are then passed onto other organisms when they consume plants.
• Plants convert carbon dioxide and water into glucose and oxygen. The carbon atoms in glucose are then passed onto other organisms when they consume plants. Eventually those carbon-based molecules will reform carbon dioxide and water when consumed or decomposed.

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