Science Quiz

What is the first step in designing an experimental investigation?

• Conducting the experiment

• Analyzing the results

• Asking a question or defining a problem

• Drawing conclusions

Answer explanation

The first step in designing an experimental investigation is asking a question or defining a problem.

Which of the following is a safe practice during a laboratory investigation?

• Eating in the lab

• Using lab equipment without permission

• Wearing safety goggles

• Working alone

Answer explanation

The safe practice during a laboratory investigation is wearing safety goggles to protect the eyes from potential hazards.

Which tool is most appropriate for measuring the volume of a liquid?

• Metric ruler

• Digital balance

• Graduated cylinder

• Thermometer

Answer explanation

The most appropriate tool for measuring the volume of a liquid is a graduated cylinder, as it is specifically designed for accurate volume measurements.

Which unit is part of the International System of Units (SI) for measuring temperature?

• Celsius

• Kelvin

• Fahrenheit

• Gallon

A scientific theory is:

• A guess

• A law

• A testable prediction

• An explanation of natural phenomena supported by many observations and experiments

What does analyzing data involve?

Which is an example of developing explanations supported by data?

• Guessing the outcome of an experiment

• Proposing a hypothesis without experimentation

• Using data from experiments to explain phenomena

• Ignoring data that does not support the hypothesis

Answer explanation

Using data from experiments to explain phenomena is an example of developing explanations supported by data, as it involves analyzing and interpreting data to draw conclusions.

Critiquing scientific explanations requires:

• Personal opinions

• Empirical evidence and logical reasoning

• Guessing and assuming

• Avoiding experimental testing

Answer explanation

Critiquing scientific explanations requires empirical evidence and logical reasoning to evaluate the validity and soundness of the claims being made.

Which biomolecule is primarily responsible for storing and transmitting genetic information?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

Answer explanation

Nucleic acids are primarily responsible for storing and transmitting genetic information.

The cell cycle is important for:

• Decreasing the number of cells in an organism

• The growth and repair of tissues

• Stopping the production of DNA

• Reducing genetic variability

Answer explanation

The cell cycle is important for the growth and repair of tissues, not for decreasing the number of cells, stopping DNA production, or reducing genetic variability.