I am a Scientist Revision

What is the study of Earth's physical structure, rocks, substances, history, and processes called?

• Biology

• Geology

• Chemistry

• Physics

Answer explanation

The study of Earth's physical structure, substances, history, and processes is called Geology.

Which of the following is a subfield of Biology?

• Paleontology

• Mineralogy

• Genetics

• Thermodynamics

Answer explanation

Genetics is a subfield of Biology that focuses on the study of genes, heredity, and variation in living organisms.

What is the main focus of Chemistry?

• Study of living organisms

• Study of Earth's structure

• Study of substances and their reactions

• Study of matter and energy

Answer explanation

The main focus of Chemistry is the study of substances and their reactions.

What should you do if an accident occurs in the lab?

• Clean it up yourself

• Ignore it

• Continue with the experiment

• Report it immediately

Answer explanation

Report it immediately

Which lab equipment is used to measure the volume of liquids accurately?

• Measuring Cylinder

• Test Tube

• Conical Flask

• Beaker

Answer explanation

The lab equipment used to measure the volume of liquids accurately is a Measuring Cylinder.

What is the SI unit for mass?

• Litre

• Kilogram

• Second

• Metre

Answer explanation

The SI unit for mass is Kilogram, which is the correct choice for this question.

What is an inference in a scientific investigation?

• A conclusion drawn from observations

• Data and observations collected

• A step-by-step procedure

• An observation made with the senses

Answer explanation

An inference in a scientific investigation is a conclusion drawn from observations, making it the correct choice.

Which variable do you intentionally change in an experiment?

• Controlled Variable

• Independent Variable

• Measured Variable

• Dependent Variable

Answer explanation

In an experiment, the variable that is changed is known as the Independent Variable.

Where should the independent variable be placed in a graph?

• On the x-axis

• In the title

• In the legend

• On the y-axis

Answer explanation

The independent variable should be placed on the x-axis in a graph to represent the input values being tested or manipulated.

What is the primary purpose of a Bunsen burner in a laboratory?

• To measure liquid volumes

• To heat substances

• To mix chemicals

• To observe reactions

Answer explanation

The primary purpose of a Bunsen burner in a laboratory is to heat substances, not to measure liquid volumes, mix chemicals, or observe reactions.