Environmental Systems

The basic units of matter, the smallest units that maintain the chemical properties of an element, are called ______.

• atoms
• lipids
• compounds
• molecules

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Because of their large size, proteins, nucleic acids, carbohydrates, and lipids are together called ______.

• elements
• compounds
• macromolecules
• micromolecules

Tags

NGSS.MS-LS1-7

Why is water often called “the universal solvent”?

• It can dissolve many other molecules
• Water can turn into a solid form.
• Water is a type of solution.
• It solves most of the world’s environmental problems.

Predator-prey relationships are an example of a _____.

• system with no feedback
• positive feedback loop
• negative feedback loop
• destabilizing system

Which sphere of Earth is made of all the rock above and below Earth's surface?

• lithosphere
• geosphere
• hydrosphere
• atmosphere

Tags

NGSS.MS-ESS2-1

Which sphere are humans a part of?

• geosphere
• hydrosphere
• biosphere
• atmosphere

A change in state in which water returns to Earth's surface and changes from a vapor to a liquid is called 

• condensation
• transpiration
• evaporation
• recharge

Tags

NGSS.MS-ESS2-4

Matter that organisms require for their life processes are called

• legumes
• decomposers
• fertilizers
• nutrients

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What products are created by the process of photosynthesis?

• the sun's light and energy
• oxygen and carbohydrates
• phosphorus and nitrogen
• carbon dioxide and water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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

• electron
• bond
• nucleus
• compound