U1-Practice of Science

If someone does a test to see if the amount of fertilizer affects plants growth, how should they set up the experiment?

• Many of the same plant in different groups; groups get same fertilizer.

• Many of the same plant in different groups; groups get different fertilizer.

• One of the same plant in different groups; groups get different fertilizer.

• One of the same plant in different groups; groups get same fertilizer.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A test was done to test the life of different batteries. What conclusion should be made based on the data chart below?

• Panasonic battery has the longest life.

• Energizer battery has the longest life.

• Duracell battery has the longest life.

• They are all equally effective.

Tags

NGSS.MS-ETS1-3

An experiment was done to see if daily vitamin C could keep away the common cold. What were the results of the test?

• Vitamin C has no affect on catching a cold.

• The results were inconclusive.

• Vitamin C is only effective at 500mg a day.

• The higher the intake of Vitamin C, the less likely you are to catch a cold.

Tags

NGSS.MS-LS2-1

Michael designed an experiment to determine how type of food affects a cow's growth. He plans to carry out his experiment by using six different breeds of cow. Each cow will be placed in a 1000 sqare foot pen, and given the same amount of water and food each day. Each cow will be exposed to a different type of food for the duration of the experiment. He plans to record his data over a period of 5 months. What mistake was made in this experiment?

• He has too many controls.

• He has too many independent variables.

• He needs to record data for a longer period of time.

• He has too many dependent variables.

Tags

NGSS.MS-LS1-5

To test reaction time grabbing a tossed ball, how can test be set up so results are accurate and test can be replicated?

• Measure reaction times multiple times and repeat experiment more than once.

• Measure reaction time of the same person multiple times and publish results.

• Record all observations and inferences about test in a summary for others.

• Collect much data, test multiple people, keep detailed record of procedure.

Tags

NGSS.MS-LS1-8

Four people are testing three ways to hold a pencil. They each use their own pencils and write different words. What is the error in this experiment?

• They should write double the words to increase the data and repetition.

• One person should use the same pencil and words to have one independent variable.

• One person should use another's pencil to increase replication.

• Should add one more way to hold the pencil to add another dependent variable.

According to the chart below, which month would be the best time to plan a trip to Disney World?

• December

• October

• September

• July

A hypothesis is no longer useful if data proves that it was wrong.

• True

• False

Tags

NGSS.MS-LS2-4

Variable that changes in an experiment.

• test/independent

• output/dependent

• constant/control

• quantitative

Variable that is measured in an experiment.

• test/independent

• output/dependent

• constant/control

• quantitative