Scientific Method

Suppose you are performing an experiment measuring the maximum amount of table salt that can be dissolved in water as the temperature of the water increases. In this experiment, what would be the dependent and independent variables?

• temperature is the independent variable; amount of table salt is the dependent variable

• amount of water is the independent variable; amount of table salt is the dependent variable

• temperature is the independent variable; amount of water is the dependent variable

• amount of table salt is the independent variable; temperature is the dependent variable

A theory is a ____.

• proposed explanation for an observation

• well-tested explanation for a broad set of observations

• summary of the results of many observations

• procedure used to test a proposed explanation

Which of the following was a major contribution to chemistry by Antoine Lavoisier?

• Metals lost mass after they were burned.

• He showed that oxygen is required for material to burn.

• He encouraged scientists to form explanations based on philosophical arguments.

• He developed the science of alchemy.

A variable that you change during an experiment is called a(n)

• Dependent variable

• Independent variable

What is an observation?

• Something you measure or detect with your senses.

• The way you feel about something

• An educated guess

• A theory that has been disproved

Tags

NGSS.MS-LS1-8

What is the scientific method?

• A systematic procedure for how to conduct a scientific experiment

• The process of solving a problem

• A way of making non-scientific observations

• A way to summarize findings from multiple investigations

Tags

NGSS.MS-LS1-1

An educated guess in science is called a/an

• hypothesis

• procedure

• conclusion

• lucky

What step does every scientific experiment begin with?

• hypothesis

• question/problem

• procedures

• conclusion

When making an observation, you must use...

• Only Sight
• Smell & Touch
• ALL 5 Senses
• Only Taste

Tags

NGSS.4-LS1-2

Which of the following is an observation of the picture?

• The person is wearing a T-shirt
• It is a sunny day
• The person is going to a birthday party
• The gift is a DVD player

Tags

CCSS.RI.7.1

CCSS.RI.8.1

CCSS.RI.9-10.1

CCSS.RL.8.1

CCSS.RL.9-10.1