What is the first step in the scientific method?

• Identify the Problem

• Gather Information

• State the Hypothesis

• Make Observations

What is the purpose of making observations in the scientific method?

• To collect data using measuring tools and the 5 senses

• To summarize results

• To make sense of data using charts and graphs

• To perform the experiment

What is the independent (manipulated) variable in this investigation?

• plant height

• type of fertilizer

• amount of water

• amount of sunlight

What does density measure?

• The amount of space an object occupies

• The amount of matter in a certain volume

• The weight of an object

• The color of an object

How can volume be found?

• By measuring the weight

• Using water displacement or length x width x height

• By counting the number of particles

• By measuring the temperature

Use the diagram to answer the question: Which box is less dense?

• Box A

• Box B

• Both have the same density

• Cannot be determined

What charge does a proton have?

• Positive

• Negative

• Neutral

• No charge

Tags

NGSS.MS-PS2-3

Which part of the atom is negatively charged?

• Proton

• Neutron

• Electron

• Nucleus

What is an element?

• A mixture of different substances

• A pure substance made of one kind of atom

• A combination of two or more elements

• A substance with no atoms

Which diagram represents a mixture of two elements?

• Diagram A

• Diagram B

• Diagram D

• Diagram E