Scientific Inquiry Review

These kind of observations are made using instruments such as rulers, balances and thermometers

• Qualitative

• Quantitative

• Controlled

• Bad

Answer explanation

These instruments will give you Numbers which are quaNtitative observations.

Tags

NGSS.MS-PS3-4

Nelson recorded that the soap had a strong scent, this was ________________.

• a qualitative observation
• a quantitative observation
• an inference

• a hypothesis

Answer explanation

Smell is one of your five senses. When you use your five senses, you make qualitative observations.

Which of the following is an example of an inference:

• The fish are small and seem to look the same

• The water is shallow and very clear

• It is a sandy and bare ecosystem

• The fish are hiding from a possible predator

Answer explanation

An inference is when you try to explain what you observed.

Which statement is an inference about this picture?

• The van is tan.

• The van is inside the KFC.

• The wall is broken.

• Someone has already called 911.

Answer explanation

An inference is when you try to explain what you observed.

Which brand of paper towel will absorb the most liquid? What is the independent variable(s)?

• Brand of paper towel
• Amount of water absorbed
• The type of liquid

• Starting with a dry towel

• How much liquid was spilled

Answer explanation

The independent variable is the ONE thing that you purposefully CHANGE in an experiment.

Which brand of paper towel will absorb the most liquid? What is the dependent variable(s)?

• brand of paper towel
• amount of liquid absorbed

• The type of liquid

• Starting with a dry paper towel

• How much liquid was spilled

Answer explanation

The dependent variable is what was AFFECTED BY what you changed (the independent variable). This is usually what you trying to observe/measure.

Tags

NGSS.MS-ETS1-3

Which brand of paper towel will absorb the most liquid? Which would be a controlled variable(s)?

• brand of paper towel
• amount of water absorbed
• The type of liquid

• Starting with a dry paper towel

• How much liquid was spilled

Answer explanation

Controlled variables are everything that you keep the SAME in an experiment.

Tags

NGSS.MS-ETS1-3

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

• They type of pot you put the plants in.

• The amount you water each plant.

• The amount of sunlight the plants get.

• The amount the plant grows.

Answer explanation

The independent variable is the ONE thing that you purposefully CHANGE in an experiment.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the DEPENDENT variable in this experiment?

"Does eating breakfast improve test scores?"

• eating breakfast or not

• the grade you got on the test

• what time you get up in the morning

• how tasty the breakfast is

Answer explanation

The dependent variable is what was AFFECTED BY what you changed (the independent variable). This is usually what you trying to observe/measure.

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

• the different surfaces

• using the same ball

• how high they bounce

Answer explanation

The independent variable is the ONE thing that you purposefully CHANGE in an experiment.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5