Science Cause and Effect

How does the author organize the information in this passage

• The author describes the cause and effects of a problem affecting frogs.

• The author compares and contrasts reptiles and amphibians.

• The author describes events in chronological order.

• The author provides solutions to a historic problem.

The reader can conclude that if Ecuador’s frog environment were healthy, then

• reptile populations would become extinct

• frog populations would increase

• frog populations would decrease further

• reptile populations would also drop

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Events have causes, sometimes simple, sometimes multifaceted. Deciphering causal relationships, and the mechanisms by which they are mediated, is a major activity of science and engineering.

• Cause and effect

• Controlled variable

• Investigation

• Science

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-LS2-4

responds to changes in the experiment, what we measure.

• Manipulated variable

• Controlled variable

• Responding variable

• Estimate

Tags

NGSS.MS-PS1-2

Design a project to compare the effects of physical changes (such as temperature and pressure) on different states of matter.

• Heat and cool water, ice, and steam to observe changes in state and record temperatures at which these changes occur.

• Freeze and melt different metals to see which one has the highest melting point.

• Apply pressure to various solids to determine their hardness.

• Observe the color changes in substances when heated without measuring temperature.

Tags

DOK Level 4: Extended Thinking

the variable in an experiment that is being changed

• Manipulated variable

• Responding variable

• Controlled variable

• Validity

Tags

NGSS.MS-PS1-2

the variable in an experiment that constant and unchanged

• controlled

• manipulated

• responding

• observe

proposed explanation that can be tested.

• hypothesis

• observation

• infer

• science

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS3-1

It is any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail, or even acidic dust.

• Global Warming

• Acid Rain

• greenhouse effect

• Ozone Depletion

• Stratosphere

It is the gradual thinning of Earth's ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities.

• Global Warming

• Atmosphere

• greenhouse effect

• Ozone Depletion

• Stratosphere