7th Grade Science Quiz Study Guide

Flashcards covering key concepts from the 7th Grade Science Quiz Study Guide, including Observation vs. Inference, CER, scientific thinking, matter, and chemical/physical changes.

A(n) __________ is a fact that you notice using your senses or a measurement.

observation

A(n) __________ is a conclusion based on observations and what you already know, and it is not a fact.

inference

In the CER model, the __________ answers the scientific question.

claim

Observations, measurements, results, and data that support a claim are known as __________.

evidence

The __________ explains why the evidence supports the claim.

reasoning

Scientists do not jump to conclusions; their first step is to __________ __________.

observe carefully

A good science fair question must be __________, meaning you should observe, change, and measure something.

testable

The P-R-Q reading strategy stands for __________, __________, and __________.

Preview, Read, Question

__________ is defined as anything that has mass and takes up space.

Matter

Mass, volume, and density are examples of __________ __________ of matter that can be observed or measured.

physical properties

During a __________ __________, the substance stays the same but may change size, shape, or state.

physical change

A(n) __________ __________ occurs when a new substance forms, which may involve bubbles, light, or a new odor.

chemical change

The Thinking Bridge order that students must memorize is: Observe, __________, __________, and Conclude.

Connect; Explain

A __________ consists of two or more substances physically combined where the substances keep their own properties.

mixture

In a solution, a __________ dissolves in a solvent.

solute

All solutions are mixtures, but not all __________ are __________.

mixtures; solutions