Fast Science Review

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

• the male alligators

• the gender of the alligator

• the temperature

• the incubator

Tags

NGSS.MS-LS1-5

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is

• the temperature

• the size of the baby alligators

• the incubator

• the gender of the baby alligators

Tags

NGSS.MS-LS1-5

Cindy placed three beehives with the same mass into separate (but identical) glass containers. Hive A was kept at 100˚F, Hive B was kept at 0˚F, and Hive C was kept at room temperature (75˚F ) For the next month, she measured the amount of honey each hive produced. Hive C produced more honey than the other two hives.What is the test (INDEPENDENT) variable in Cindy's experiment?

• the temperature of each hive

• the number of hives

• the mass of each hive

• the amount of honey produced

What is the difference between a scientific theory and a scientific law?

• A theory is a well-tested range of representations and a law is a concrete physical representation.

• A theory is a well-tested range of observations of why something works and a law is a well-tested concrete explanation how things work

• A theory is a well-tested range of observations of how something works and a law is a well-tested concrete explanation of why things work

• A theory is a hypothesis that is yet to be proven false and a law is a hypothesis that will always be true.

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

NGSS.MS-LS2-3

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method

• recipe

• data collection

• metric system

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NGSS.MS-PS1-2

What is the difference between an independent and dependent variable?

• independent variable is what you change in the experiment, dependent variable is the result of the change

• dependent variable is what you change in the experiment, independent variable is the result of the change

• independent variable is altered and dependent variable is altered too

Tags

NGSS.MS-PS2-2

In a controlled experiment, how many independent variables can be worked with at a time? 

• one

• none

• two or more

• how ever many makes sense.

Tags

NGSS.MS-PS2-2

What is being kept constant?

• amount of fertilizer

• amount of water

• height

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1