Quarter 2 Exam Practice

Front

What is the arrangement of particles in a liquid?

Back

Particles in a liquid are closer together than in a gas and have more energy than in a solid.

Front

What is the smallest unit of matter?

Back

The smallest unit of matter is an atom.

Front

What is a hypothesis?

Back

A hypothesis is a testable statement or prediction about the relationship between variables.

Front

What does it mean for evidence to 'fail to support' a hypothesis?

Back

It means that the evidence does not confirm the hypothesis and suggests that it may be incorrect.

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and cannot be separated into other materials by physical means.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements are chemically bonded, while a mixture is a combination of two or more substances that are not chemically bonded.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is an observation in scientific research?

Back

An observation is the act of noting and recording something with instruments or through the senses.

Front

What is the role of a control in an experiment?

Back

A control is a standard for comparison in an experiment, helping to isolate the effects of the variable being tested.

Front

What is the significance of repeating experiments?

Back

Repeating experiments helps to verify results and ensure that findings are reliable and not due to chance.