NEW
Font size
WorksheetsSc.8.N.1.5
Total questions: 20
Worksheet time: 11mins
F-CIM SC.7.N.1.1
The graph below shows the number of students in a school who participated in athletics between the years
2005 and 2008.
STUDENTS PARTICIPATION IN ATHLETICS
By extrapolating data from the graph, predict the change in the numbers of male and female athletes in the year 2009.
a. Fewer females participated than men.
b. More males participated than females.
c. Fewer males participated than females.
d. The number of female and males athletes was even.
a
b
c
d
F-CIM SC.7.N.1.3
Claire decided to find out which wildflowers are most abundant near roadsides in her community. Which of the following would best help Clair with her investigation?
a. observation
b. making a model
c. using a computer model
d. conducting a controlled experiment
a
b
c
d
Other than scientific experiments, what other methods do scientists use to investigate problems?
Models, Observations, & Research
Models, Observation, & Replication
Models, Repetition, & Replication
Models, Repetition, & Variables
Science determines results based on _____________________.
Rumor
Hypothesis
Evidence
Popular opinion
Scientists sometimes change their views. For example, people once believed that Pluto was a planet. What causes these changes in thinking?
new experiments
new evidence or interpretations
new scientific beliefs
new theories develop
Which one is a limitation of a drawing but not a model of the cell?
it does represent the main parts of a cell
it does not contain the correct number of nuclei
it cannot represent a true cell which is 3 dimensional
it cannot represent a true cell since the cytoplasm should be in constant motion
What is a scientific model?
A representation of an object, but smaller
An exact representation made of similar material
A representation of an object or system
A familiar copy of an object
SC.7.N.1.4
Jason states the following prediction: “As the air temperature increases, the air in a balloon will expand, increasing the circumference of the balloon.”
Some of Jason’s observations during his experiment are shown below. Which of the following is the outcome variable (dependent variable) for an experiment designed to test Jason’s prediction?
a. circumference of the balloon
b. material the balloon is made of
c. length of the balloon’s string
d. air temperature
a
b
c
d
SC.6.N.1.4
Ty and Crystal are working together to learn about surface tension. They each add pennies to their own cup of water to see how many they can add before the cup overflows. Ty is able to add 15 pennies. Crystal is able to add 38. What should their next step be?
a. They should discuss differences in their methods.
b. They should each claim that their answer is right.
c. They should record their results and move on to a different investigation.
d. They should repeat the experiment using different pennies.
a
b
c
d
What is the BEST reason you always repeat an experiment?
Make sure your data is consistent and accurate
Make sure your data supports your prediction
Make sure your experiment is easy to do
Make sure your experiment has lots of data
F-CIM SC.7.N.1.1
Abbie constructed a graph based on the results of her investigation. The graph is shown below.
Which of the following would be the best title for Abbie’s graph?
a. “The Increase in Bacteria Populations”
b. “The Effect of Sunlight on Bacteria Growth”
c. “The Change in a Bacteria Population over Time”
d. “The Effect of Temperature on Bacteria Populations”
a
b
c
d
F-CIM SC.7.N.1.3
Dr. Yang conducted a field study of the nesting habits of red cardinals. Why did she choose a field study over other types of investigation?
a. because she wanted to manipulate variables in the field
b. because she wanted to observe the birds in their natural habitat
c. because she wanted to simulate the life cycle of the birds in a lab
d. because she wanted to observe a simplified version of the environment
a
b
c
d
Which method is best for determining scientifically which of two fertilizers is most effective for raising tomato plants?
Treat two different varieties of tomato plants individually with the different fertilizers and measure their growth and appearance. Compare differences in the growth of individual plants.
Apply one type of fertilizer to a group of similar tomato plants and apply a different type of fertilizer to a different group of similar tomato plants and compare the growth and appearance of both groups.
Use one type of fertilizer on a group of different varieties of tomato plants and measure their growth and appearance. Compare their growth to a group of plants that were not treated with the fertilizer.
Mix the two types of fertilizers and apply the mixture to one variety of tomato plants and measure their growth and appearance. Compare their growth and appearance to a group of tomato plants that were not treated with the mixture.
A group of students investigate the effect of carbon dioxide on plant height. The students grow plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the test variable (independent variable) in this experiment?
height of each plant after a period of time
amount of carbon dioxide in each container
amount of air in each container
amount of water provided to the plants
Astronomers study objects as large as galaxies. Chemists study objects that can be as small as an atom. Even though scientists in each field study very different things, why are both astronomy and chemistry considered science?
both fields are based on the same experiments
both fields use the same basic scientific methods
both fields require the same basic knowledge
both fields use the same technology
Eddie wants to determine if different colored boxes produce the same temperature inside as a white box. He places white, black, and red boxes of the same size in the sunlight. A thermometer is placed inside each box. He observes and records the temperatures in the boxes throughout the day. What is the test variable (independent variable) in this investigation?
size of the boxes
repeated trials
color of the boxes
recorded temperatures
A student is working on an experiment that measures the number of times a mouse can find cheese in a maze. The mouse is always taken out of the maze and placed at the same starting point when he enters the maze. The placement of the cheese changes each time the mouse is taken out of the maze. What is the dependent variable in this experiment?
the placement of the mouse
the placement of the cheese
the type of mouse used to find the cheese
the number of times the mouse finds the cheese
An astronomer discovered a new comet in orbit around the Sun. He wants to learn more about the size, shape, and period of the comet's orbit. What type of investigation should the astronomer perform?
Analyze data about similar comets that also orbit the Sun.
Observe the behavior of the comet as it moves in its orbit around the Sun.
Set up a controlled experiment with dependent and independent variables.
Conduct a survey of astronomers to gather their opinions about the comet.
The following chart shows the growth of three types of bean plants for four weeks. Which week did the pole beans grow the most?
Week 1
Week 2
Week 3
Week 4
