Chapter 1 Chemi

Which of the following is not a safety precautions followed in a science lab?

• Wear goggles

• No horseplay

• Eat food in lab area

• Tie long hair back

What was a goal of early Alchemists

• Organize elements into a table

• Make fireworks

• Discover the structure of an atom

• Turn lead into gold

What is a hypothesis

• an educated guess

• a proposed testable explanation for an observation or a scientific phenomena

• the data collected from an experiment

• a description of physical and chemical properties of a substance

Which of the following is a graduated cylinder

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Which of the following is a beaker

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What is the correct volume of the water in the container

• 43.0 ml

• 44.0 ml

• 42.5 ml

• 43.5 ml

What is mass?

• the amount of space an object takes up

• the amount of substance in an object

• the amount of energy in an object

• the amount of objects you have

What tool do you use to measure mass?

• ruler

• graduated cylinder

• beaker

• electronic balance

What is volume?

• the amount of space an object takes up

• the amount of substance in an object

• the amount of energy in an object

• the amount of object you have

What tool do you use to measure volume?

• beaker

• graduated cylinder

• electronic balance

• timer