QUIZ 3 Science: Earth and Space Section 1.4

MATCHING: Match each description with the correct term.

• nitrogen

• makes fruit "firm up" properly

• potassium

• main function is to contribute to the general health of a plant and improve disease resistance

• phosphorus

• stimulates the growth of stems and leaves

• compound

• general term for a substance containing two or more elements bonded together

• phosphate

• any member of the group of chemicals that contain phosphorus bonded to oxygen and other elements

Abigail is learning about healthy eating in her science class. Her teacher asks, "What word means 'a nourishing substance' that helps our bodies grow and stay healthy?"

• nutrient

• solvent

• mineral

• enzyme

Hannah is learning about how essential elements move through the environment. She wonders about the process by which nitrogen is moved from the air to the soil to be used by plants and then returned to the atmosphere to be used again. What is this process called?

• nitrogen cycle

• carbon cycle

• water cycle

• photosynthesis

Noah is studying how certain bacteria help farmers by improving soil fertility. He learns that some bacteria convert nitrogen from the air into ammonia, nitrates, and other nitrogen compounds that plants can use. What type of bacteria is Noah learning about?

• nitrogen-fixing (bacteria)

• denitrifying (bacteria)

• photosynthetic (bacteria)

• lactic acid (bacteria)

Tags

NGSS.MS-LS2-1

Zoe is examining a shiny, silver material in her science class. She learns that it is made up of only one type of atom. What is the general term for such a substance?

• element

• compound

• mixture

• solution

Evelyn is studying how different bacteria affect the nitrogen cycle in her garden. She wants to know which type of bacteria is responsible for converting nitrates in the soil into atmospheric nitrogen. What type of bacteria should she look for?

• denitrifying (bacteria)

• nitrifying (bacteria)

• nitrogen-fixing (bacteria)

• ammonifying (bacteria)

Tags

NGSS.MS-LS2-3

Grace is studying biology and comes across a term that means "a nourishing substance". What word is she looking for?

(a)  

Grace is curious about how plants in her garden get the nitrogen they need to grow. She wonders about the process by which nitrogen is moved from the air to the soil to be used by plants and then returned to the atmosphere to be used again. What is this process called?

(a)  

Tags

NGSS.MS-LS2-3

Hannah is studying how plants get the nutrients they need to grow. She learns that certain bacteria in the soil help convert nitrogen into ammonia, nitrates, and other nitrogen compounds that plants can use. What type of bacteria is Hannah learning about?

(a)  

Tags

NGSS.MS-LS2-3

Emma is studying materials in her science class. She comes across a substance that is made up of only one type of atom. What is the general term for this kind of substance?

(a)