Science Quiz ch 3

All material in the universe that has mass and occupies space is called

• covalent.

• compound.

• matter.

• carbon.

The central core of every atom, containing particles called protons and neutrons, is called a(n)

• electron.

• bond.

• nucleus.

• compound.

Tags

NGSS.MS-PS1-1

Which type of macromolecule is composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur, and can produce tissues, act as hormones, and serve as enzymes?

• proteins

• lipids

• nucleic acids

• carbohydrates

Tags

NGSS.HS-LS1-6

Water molecules are composed of

• two oxygen atoms and two hydrogen atoms.

• one oxygen atom and two hydrogen atoms.

• two oxygen atoms and one hydrogen atom.

• one oxygen atom and one hydrogen atom.

Tags

NGSS.MS-PS1-1

A process in which an event acts as both an input and output of the same system is called a(n):

• Feedback loop

• Linear process

• Open system

• Closed system

Tags

NGSS.MS-LS2-3

The thin layer of rock that forms Earth's outer skin both on dry land and in the ocean is called Earth's

• core

• crust

• mantle

• asthenosphere

Which of Earth's spheres consists of the layers of gases surrounding our planet?

• geosphere

• biosphere

• atmosphere

• hydrosphere

What function does carbon dioxide play in Earth's atmosphere?

• It provides gas for humans to breathe.

• It provides a high level of protection from the sun's radiation.

• It keeps Earth warm through the greenhouse effect.

• It provides liquids for animals to drink.

Nutrients circulate endlessly throughout the environment in complex cycles called

• eutrophication cycles.

• respiration cycles.

• photosynthesis cycles.

• biogeochemical cycles.

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

What is the term for organisms, including plants and algae, that create their own food?

• consumers

• producers

• legumes

• decomposers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3