Scientific Knowledge and Practices

Which statement does NOT describe a scientific theory?

• A scientific theory can never be proven

• A scientific theory is supported by facts

• A scientific theory eventually becomes a fact

• A scientific theory is a generally accepted explanation

A(n) __________ is a rule that describes a pattern in the natural world.

• theory

• hypothesis

• scientific law

• observation

Tags

NGSS.MS-PS2-4

In 1859, Charles Darwin described a model of how living things change over time. He described this model and the evidence that supported it in a book called On The Origin of Species. Which scientific term is used to describe a testable model that seeks to explain natural phenomena?

• data

• hypothesis

• theory

• observation

Scientists form _________ hypothesis to answer questions.

• accurate

• short

• mathematical

• testable

Tags

NGSS.HS-PS1-2

Before a scientific theory is accepted and supported, it has

• been tested by only one scientist.

• been published in scientific journals.

• been tested many times by different scientists.

• been approved by the International Committee of Scientists.

Tags

NGSS.HS-PS2-1

A scientific ____________ is a statement that describes what always happens under certain conditions in nature.

• law
• theory
• method
• variable

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Theory or law? The cell _________ of living things: living things are made of cells, which explains how things grow and live.

• Theory

• Law

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Theory or Law? Kepler's ______ of Planetary Motion: how planets orbit the sun. Shows what happens with planets.

• Theory

• Law

Tags

NGSS.HS-ESS1-4

Theory or Law? Tectonic ________ of Geology: the surface of the earth is made of tectonic plates, which move slowly. Explains why mountains are formed, earthquakes happen, etc.

• Theory

• Law

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Theory or Law? Newton's first ______ of Motion: Objects will stay in motion unless stopped. Shows what happens with moving objects.

• Theory

• Law