Nature of Science G 7

Which of the following is a scientific observation? 

• The potato is brown in color.
• The potato tastes the best.
• The potato may cause allergies.
• The potato smells funny. 

A scientist is collecting data on the number of times a cricket chips per minute. What sense is the scientist most likely using to make observations?

• hearing
• smell
• sight
• touch

Tags

NGSS.MS-LS1-8

Justin blows his nose, but mucus seems to leak through the tissue.  He decides to test which tissue holds up the best while sneezing.  What is the independent variable?

• sneezing
• Justin
• amount of tissue
• type of tissue

Tags

NGSS.3-5-ETS1-3

Mr. McNeice wanted to know if different types of music affected people's heart rates, so he played different music and checked their pulses.  What is the dependent variable?

• type of music
• heart rate
• how long they listend to music
• Mr. McNeice

Which question can best be investigated by a scientist?

• Should I buy a red shirt or a green shirt?
• Does chocolate milk or plain milk taste better?
• Does a plant need sunlight to grow?
• Which feels softer, cat fur or dog fur?

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

The container is filled to the 350 mL mark with water. 

• observation
• inference
• problem
• hypothesis

How many independent variables should be tested at a time in a scientific investigation?

• none
• one
• two
• three

Tags

NGSS.MS-PS2-2

Which is the dependent variable in Amelia's experiment?

• the number of bean plants in each group 
• the amount of water given daily to each plant 
• the height of each bean plant 
• the amount of fertilizer given to each group of bean plants

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The variable that is changed on purpose is: 

• Control
• Dependent
• Independent
• Outcome

What is an inference? 

• Just a guess.
• A statement based off of your observations. 
• The same as an observation. 
• Examples of something.