Intro to Chemistry

Do scientists classify vitamins and minerals as food?

• Yes

• No

What two things must be true about a substance for it to be considered food?

• It gives us building materials for our bodies

• It makes us smaller

• It gives us energy

• It makes us happy

Where does the light and thermal energy given off when burns food come from?

• Light and thermal energy given off from burning food comes from the lighter used to light the food.

• Light and thermal energy given off from burning food is converted from the chemical energy stored in the food.

• Light and thermal energy given off from burning food comes from oxygen.

• Light and thermal energy given off from burning is created when food burns.

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NGSS.MS-PS1-5

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What is the same about carbohydrates, proteins, and fats?

• Carbohydrates, proteins, and fats all have carbon, hydrogen, and oxygen atoms.

• Carbohydrates, proteins, and fats are all made of the same number and types of atoms.

• Carbohydrates, proteins, and fats all have the same arrangement and types of atoms.

• Carbohydrates, proteins, and fats can all form long chains of molecules.

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NGSS.MS-PS1-1

When do humans store fat molecules in their bodies?

• Humans store fat molecules every time they eat anything that contains calories.

• Humans store fat molecules when they eat food with a lot of fat.

• Humans store fat molecules when they eat junk food.

• Humans store fat molecules when they eat more calories than they need.

What is true about photosynthesis?

• During photosynthesis, plants convert thermal energy into chemical energy and store the energy in food molecules.

• During photosynthesis, plants use carbon dioxide and water in a chemical reaction to make glucose and oxygen.

• Photosynthesis is a chemical reaction used by plants and animals to make food molecules.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3