FREE SCIENCE AND STUDY GAMES ABOUT

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FREE SCIENCE AND STUDY GAMES ABOUT

UNIT3MATTERENERGY6TH EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -31 Questions and Answers -format set of multiple-choice -Expert- Explanation

Question 1: carbon cycle

Answer:

the movement, fixation, and reuse of carbon in the atmosphere, biosphere, lithosphere, and hydrosphere

Question 2: glucose

Answer:

a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms

Question 3: chloroplast

Answer:

the part of a cell where photosynthesis happens

Question 4: carbon dioxide

Answer:

a molecule made of carbon and oxygen atoms

Question 5: crystalline structures (solid)

Answer:

extended structures with repeating subunits of atoms, such as salt, sugar, sand, snow/ice

Question 6: carbon

Answer:

a type of atom (a tiny piece) that makes up molecules such as carbon dioxide and energy storage molecules

Question 7: mitochondrion

Answer:

the part of a cell where cellular respiration happens

Question 8: consumer

Answer:

an organism that needs to eat in order to get energy storage molecules (such as starch and fat)

Question 9: producer

Answer:

an organism that can make its own energy storage molecules (such as glucose)

Question 10: input

Answer:

something that is required for a process

Question 11: connect

Answer:

to link two or more things

Question 12: output

Answer:

something that results from a process

Question 13: photosynthesis

Answer:

the process by which plants and other producers use energy from sunlight to change carbon dioxide and water into oxygen and glucose (an energy storage molecule)

Question 14: biotic matter

Answer:

matter that makes up the living and dead organisms in an ecosystem

Question 15: biodome

Answer:

a closed ecosystem made by humans

Question 16: nitrogen cycle

Answer:

the movement, fixation, and reuse of nitrogen in the atmosphere, biosphere, lithosphere, and hydrosphere

Question 17: cellular respiration

Answer:

the chemical reaction between oxygen and glucose that releases energy into cells

Question 18: atoms

Answer:

the tiny pieces that all matter-all the stuff in the world-is made of

Question 19: reactant

Answer:

a starting substance that is part of a chemical reaction

Question 20: ecosystem

Answer:

all the living and nonliving things interacting in a particular area

Question 21: energy

Answer:

the ability to make things move or change

Question 22: decomposer

Answer:

an organism that gets energy storage molecules (such as glucose) by breaking down dead matter

Question 23: starch

Answer:

a type of energy storage molecule made of many glucose molecules connected together

Question 24: product

Answer:

an ending substance that is made during a chemical reaction

Question 25: system

Answer:

a set of interacting parts forming a complex whole

Question 26: fat

Answer:

a type of energy storage molecule

Question 27: energy storage molecule

Answer:

a molecule that organisms can use to release the energy they need to survive

Question 28: molecule

Answer:

a group of atoms joined together in a particular way