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- 1. Multiple Choice
Which of the following statements about a controlled experiment is true?All the variables must be kept the same.Only one variable is tested at a time.Scientists always use controlled experiments.Controlled experiments cannot be performed on living things. - 2. Multiple ChoiceWhich is a testable explanation?dependent variableindependent variablehypothesisobservation
- 3. Multiple Choice
What is any condition in an experiment that can be changed?
control
question
variable
conclusion
- 4. Multiple ChoiceWhat can you infer about the reason the grass did not grow?Paula did not use good soil.The grass needs more water.The grass did not grow well in the sunlight.The grass did not grow well in the shade.
- 5. Multiple ChoiceWhich hypothesis is correct?
Problem: "Do blue marbles have a higher mass than red marbles?"If the mass of marbles is tested, then the blue marbles will have a higher mass.If the mass of marbles is tested, then they will have a higher mass.If the mass of marbles is tested, then they will have a higher mass than red marbles.If the mass of marbles is tested, then the masses of blue and red marbles will be equal. - 6. Multiple ChoiceA hypothesis can be worded like this:Then...if...becauseIf...I predict...I thinkIf...then...because
- 7. Multiple ChoiceWhich of the following is considered a good, testable question?Why do some basketballs bounce higher than others?What is the coating on a basketball made of?Is basketball a more challenging sport than soccer?What is the effect of air pressure on a basketball's bounce height?
- 8. Multiple ChoiceWhich of the following is a good, testable question?What is the effect of the amount of fertilizer on the mass of a pumpkin?Does the type of pumpkin affect where it grows?They type of pumpkin affects the mass of the pumpkin?how does mass affect fertilizer?
- 9. Multiple ChoiceMr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.distance traveled by the ballheight of the rampmass of the ballweight of the ball
- 10. Multiple ChoiceMr. McNiece wanted to see how different types of music affected students' pulse rates. She played different types of music: heavy metal, rap, R&B, alternative, pop, country, and classical music. Identify the dependent variable.Mr. McNiecepulse ratehigh pulse rateclassical music resulted in the highest pulse rate
- 11. Multiple ChoiceNick wanted to see how high an ice cube would float in different temperatures of water. Identify the dependent variable.amount of watertemperature the ice cube was at its' highest heighttemperature of waterheight of ice cube
- 12. Multiple ChoiceAn experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...The type of plantThe amount of sunlightThe type of musicThe type of liquid
- 13. Multiple Choice
A student wants to test how different amounts of UV light affect the growth of the bacteria, Staphylococcus aureus. She wants to grow the bacteria in petri dishes for her experiment. Which of the following variables should NOT be held constant in this experiment?
amount of UV light bacteria is exposed to
amount of time to grow bacteria
location of petri dishes while growing bacteria
type of bacteria (Staphylococcus aureus)
- 14. Multiple Choice
A student is studying the effect of sunlight on plants. The student developed this hypothesis: Plants need light to make food and to grow properly. To conduct a controlled experiment, which method should she use?
Choose two identical plants; put one in the dark and one near sunlight; use the same amount of water; water both regularly
Choose a healthy plant; put it in a dark place; use clean water; water the plant regularly.
Choose two identical plants; put each in the dark for 12 hours and then light for 12 hours; use the same amount of water; water both regularly.
Choose three identical plants; put one in the dark, one near sunlight, and one in the shade, water only the plant in light.
- 15. Multiple Choice
A possible explanation for why something happens is called ___.
a variable
an experiment
a hypothesis
an assumption
- 16. Multiple Choice
Which of the following is a factual conclusion that may be made from the data in the tables?
As the temperature increases in both air and water the speed of sound stays the same
As the temperature increases in both air and water the speed of sound decreases
As the temperature decreases in both air and water the speed of sound increases
As the temperature decreases in both air and water the speed of sound decreases
- 17. Multiple Choice
Which of the following is true?
The hours of daylight has no impact on temperature
As the hours of darkness increase the average temperature tends to increase
As the hours of darkness increase the average temperature tends to decrease
The hours of darkness has no impact on temperature
- 18. Multiple Choice
Which of the following can be concluded from the graph?
There are approximately 6 more hours of daylight in the summer than in the winter
There are approximately 6 more hours of daylight in the winter than in the summer
- 19. Multiple Choice
Which conclusion is true?
Attendance decreased each day of the week
Attendance increased each day of the week
Attendance was was the lowest on Friday
Attendance was higher at the end of the week than the beginning
- 20. Multiple Choice
Which data below matches the data presented in the graph?
Jan 4 cm
Mar 5 cm
May 14 cm
Jan 4 cm
Mar 5 cm
May 13 cm
Jan 5 cm
Mar 6 cm
May 14 cm
Jan 4 cm
Mar 5 cm
May 5 cm
- 21. Multiple Choice
Examine the line graph below. If the population of Centerville continues to increase at the same rate, what will the population be in the year 2010?
16,000 people
6500 people
9500 people
8000 people
- 22. Multiple Choice
It is important to share data from scientific experiments with others. Which of the following methods is a valid way to present collected data?
There is no need to present scientific data
Record the data in a private lab journal.
Publish the data in an academic journal
Give a speech about the data if the data supports the original hypothesis
- 23. Multiple ChoiceThe information you record in an experiment is called your ____________.dataconclusionsnotebookinquiry
- 24. Multiple ChoiceIn a well designed experiment, you should change how many variables?only oneno more than twonone at allas many as are needed
- 25. Multiple ChoiceThe one variable you change is called the ___________ variable.independentdependentcontrolled
- 26. Multiple ChoiceStudents used various temperatures of water to see which one dissolved candy faster.
What was the Independent Variable?Amount of CandyAmount of WaterTemperature of WaterTime for Candy to Dissolve - 27. Multiple ChoiceMaria wants to know if birds prefer to eat in one place over another. She makes three feeders out of 2-liter bottles and paints all of them red. She fills each of the feeders with the same amount of mixed birdseed, and plans to keep the feeders out for 10 days before measuring how much seed is eaten from each feeder. She puts each of the feeders in her back yard: one feeder in a large dead tree, another feeder she sits on the dog house, and the last she sits in a small bushy tree.
What is the independent variable?Red birdfeedersPlacement of birdfeedersAmount of seed - 28. Multiple ChoiceWhat is the main purpose of a line graph?to compare two thingsto show trends over timeto have an independent variableso you don't have to read words
- 29. Multiple Choice
The number of bags of puppy food at a pet store decreases as the number of hours the store is open increases, as shown on the graph. At the fourth hour, how many bags of puppy food are left to sell?
10
12
15
18
- 30. Multiple Choice
A restaurant recorded the number of pizzas sold each month for one year. The data are shown in the graph below. During which month did the restaurant sell 40 pizzas?
March
May
July
August
- 31. Multiple Choice
Annie recorded the amount of rain that fell each day. The results are shown in the line graph below. How many centimeters of rain fell on the third day?
2
3
4
7
- 32. Multiple ChoiceThe diagram below shows the composition of the surface of Earth. Which best summarizes the composition of the surface of Earth?Three-fourths of Earth’s surface is land.One-fourth of Earth’s surface is water.Earth’s surface contains more land than water.Earth’s surface contains more water than land.
- 33. Multiple Choice
How many species of bacteria were used in this study?
1
2
3
4
- 34. Multiple ChoiceA school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?The sample didn't include students.The sample is too small.The sample can only be accurate if each teacher is included in the sample
- 35. Multiple ChoiceAt a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?to randomly ask 8th grade students who went on a field trip last yearto randomly choose some 7th grade students to select a locationto ask all 7th grade teachers and administrators for a locationto ask the student council to choose a location
- 36. Multiple ChoiceWhich scenario would produce the least biased results?asking athletes at a gym what their favorite television show isasking shoppers at a store where their favorite place to shop isasking fans at a baseball game who their favorite baseball team isasking students in a college library what their favorite college sports team is
- 37. Multiple ChoiceA state fair had 1,019,887 people in attendance. The fair committee performed a survey. The question was, “What do fairgoers enjoy most about the fair?” Of those who responded, 83% reported eating traditional foods. Which group of people represents the sample group?Fair goers who like traditional foodsThe fair committeeFair goers who responded to the surveyAll fair goers
- 38. Multiple ChoiceHow is credibility determined?A. By looking at the writing and considering whether it is expository, informative, or argumentative.B. By looking at the trustworthiness, authority, or professionalism of a research source.C. By looking at whether or not the source's information contradicts or weakens the central claim.D. By looking at a researched source's use of the elements of ethos, logos, and pathos.
- 39. Multiple ChoiceWhy should you be careful about using Wikipedia as a credible source?A. References for the information are not listed on the website.B. Users can leave comments about the information on the site.C. Entries can be written by any anonymous person.D. Information can be used by anyone without proper citation.
- 40. Multiple ChoiceWhich website would probably be the most credible source about literacy?A. Literacy-research-studies.eduB. Youtoocanreadbetter.comC. Readingstartshere.comD. Youth-reading-coalition.com
- 41. Multiple ChoiceWhere will you most likely find a list of sources that an author used in their article?The beginning of the articleThe middle of the articleThe end of the articleA list of sources is not needed for an article to be credible
- 42. Multiple ChoiceWhen an author favors one side of an argument unfairly, it is called...FactOpinionBiasSexism
- 43. Multiple ChoiceWhat is the first step in the scientific method?Ask a questionConclusionNo Horse PlayObserve
- 44. Multiple ChoiceLong hair in the laboratory must betied back or kept entirely out of the way with a hair band, hairpins, or other confining devicealways neatly groomedheld away from the experiment with one handcut short
- 45. Multiple ChoiceYou are heating a substance in a test tube. Always point the open end of the tubeaway from all peopletoward another classmatetoward your lab partnertoward yourself
- 46. Multiple ChoiceWhat is measured with a graduated cylinder?Passage of timeDistance from one thing to anotherWeight of an objectVolume of liquid
- 47. Multiple ChoiceIdentify the equipment shown here:graduated cylinderErlenmeyer flaskbeakervolumetric flask
- 48. Multiple ChoiceName this itemBalancepH MeterDigital ThermometerSpectrometer
- 49. Multiple Choice
__ is a description of how similar or close measurements are to each other.
science
accuracy
precision
none of the above
- 50. Multiple ChoiceVolume?63.5 mL63 mL63.55 mL6 mL
- Answer choicesTagsAnswer choicesTags