Year 7 Science - Term 1 - Revision

Front

What are Quantitative Observations?

Back

Quantitative Observations are detailed observations that are expressed in numbers, allowing for more accurate scientific measurements.

Front

What is an Observation?

Back

An Observation is something that you can see, touch, smell, hear, or taste that provides information about something.

Front

What are Emulsions?

Back

Emulsions are mixtures that are incapable of mixing and are considered colloidal suspensions of one liquid in another liquid. They will separate into their individual components if allowed to sit for long enough.

Front

What is a Dependant Variable?

Back

A Dependant Variable is the variable that is directly affected by the Independent Variable. It is the result of changes in time, dates, depth, and temperature, and is plotted on the Y-axis.

Front

What is a Mixture?

Back

A Mixture is a combination of two or more substances that are not chemically combined and retain their individual properties.

Front

What is a Controlled Variable?

Back

A Controlled Variable is a factor in an experiment that is kept constant to ensure that the test results are valid.

Front

What is an Independent Variable?

Back

An Independent Variable is the variable that is changed or controlled in a scientific experiment to test its effects on the Dependant Variable.

Front

What is a Colloidal Suspension?

Back

A Colloidal Suspension is a mixture where tiny particles of one substance are dispersed throughout another substance but do not settle out.

Front

What is the purpose of a Safety Rule in experiments?

Back

Safety Rules are guidelines that help ensure the safety of individuals conducting experiments by minimizing risks and hazards.

Front

What is the difference between a Solvent and a Solute?

Back

A Solvent is the liquid in which a solute dissolves, while a Solute is the substance that is dissolved in the solvent.