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WorksheetsNature of Science
Total questions: 66
Worksheet time: 1hrs 3mins
Jane is investigating to find out if bean plants grow taller in
ordinary topsoil or special potting soil over a three week period.She sets up her investigation with 10 bean plants of equal size in each type of soil.
What should Jane do each day to make sure she gets valid
results?
Water only the plants in special potting soil.
Measure the plant height for each soil type.
Move the plants in ordinary topsoil to different locations.
Estimate the height of each plant's stem and record the
estimate.
Thomas and Julie wanted to find out which material would insulate their teacher's coffee cup and keep the coffee hot for the longest period of time. They first wrapped her cup with bubble wrap and recorded the temperature of the coffee once every 15 minutes for 2 hours. They repeated the investigation, this time using newspaper instead of bubble wrap, but they got the same results for both materials. What could they do to make sure their results are valid?
Repeat their experiment
Use tea instead of coffee
Use a different thermometer
Conduct their investigation in a colder room
Brianna's class wants to determine if boys or girls recycled
more paper each day. They set up separate recycling bins in
the classroom and labeled them "Boys" and "Girls." The
students then placed their paper items in the right bins. Which of the following should the students do each day before emptying the bins?
Make lists of the different types of paper in each bin.
Count and record the number of paper items recycled in each bin.
Make a list of which student recycled which paper item in each of the bins.
Record their estimate of numbers of times students placed items in each bin.
Kevin wanted to find out which of his toy cars, the Corvette or the Mustang, would roll downhill faster. He made a ramp by putting several books under one end of a board so that the board was slanted. Which would be the best way for him to perform his experiment?
Roll each car down the ramp separately five times and estimate which car looked faster.
Roll both cars down the ramp together one time and see which one gets to the bottom first.
Roll each car down the ramp separately one time, and time them with the second hand on his watch.
Roll both cars down the ramp together five times and record which gets to the bottom first each time.
Christopher uses the data on several packages of cereal to find out the amount of fat in one serving of each cereal. What best describes of the type of investigation Christopher is doing?
experiment
interview
observation
survey
Kimberly made a model to show the spinning of a tornado. She filled a 2-liter soda bottle with water. Then she connected it neck-to-neck with an empty 2-liter bottle. She flipped the water-filled bottle upside down and turned it a few times. What is the difference between this activity and an experiment?
This activity is not repeatable
There are no well-defined variables
No prediction was made before the activity began
The activity is not done under controlled conditions
Greg read the following facts about sow bugs.
A Sow bug bodies are made up of 7 segments.
B Sow bugs are crustaceans.
C Sow bugs have 14 legs.
D Sow bugs avoid light.
Greg can investigate all of these statements. Greg can do an
experiment to test the accuracy of one of the statements.
Which statement can he test?
Statement A
Statement B
Statement C
Statement D
Tammy is investigating whether a person’s height remains the same all day long. She is going to measure the heights of 5 of her friends at different times of the day.What best describes the type of investigation Tammy is doing?
demonstration
experiment
interview
survey
Dora thinks that there are more frogs in the pond by her
house when the water temperature is higher. She is
making a chart to use as she gathers data to see whether
she is correct. What data should Dora record on her chart?
Time, air temperature, water temperature
data, time, air temperature, number of frogs
date, time, water temperature, number of frogs
date, air temperature, wind speed, number of frogs
Chloe wonders what type of string is best for growing crystals. She uses 4 types of string. She puts them all in glasses with the same baking-powder solution. Then she observes the crystal growth. How do you know that Chloe is doing an experiment?
She will form conclusion about the type of string that is best
She is observing how well crystals grow on each string
All conditions expect string types are constant
Before she started, she made a plan
When a scientist performed an experiment, she did not get the results she expected. What should she do?
change the results
assume her results are correct
assume her results are incorrrect
do the experiment again to test her results
A drug company is testing a new medicine. They give one group of test subjects the new medicine in a tablet. They give the other group a tablet with no medicine. Why is it important that one group get no medicine?
To find out how long it takes people to get well with no medicine
To find out whether people really get well or if they are just pretending
To be sure it is the medicine that makes people well and not anything else
To find out whether the new medicine makes people more sick than people who get no medicine.
Gwen is doing research about hurricane damage in Florida. Which of the following resources would not be a reliable source of information about hurricanes?
Websites written by a student
Almanac entry about hurricanes
Website run by a government agency
Encyclopedia entry about hurricanes
Scientists use different processes to investigate scientific questions. The methods that scientists use to investigate questions can vary. During which part of an investigation would a scientist gather evidence?
asking a question
analyzing results
drawing conclusions
Conduction an investigation
Caleb and Anika each conduct an experiment in which they
investigate whether the amount of dishwashing liquid affects how many bubbles produced. They put different amounts of dishwashing liquid in two equal-sized jars. They put lids on the jars and shake them. Then they measure the height of the bubbles. Which of the following methods would affect their results?
Caleb took more time to set up his experiment than Anika
Anika shook the liquid in the jar for twice the amount of time.
Anika used a jar with a metal lid and Caleb used a plastic lid.
Caleb used a metric ruler and Anika used a metric tape measure.
Rodrigo is investigating how sunlight affects the growth of plants. He gets two identical plants and labels them Plant 1 and Plant 2. He puts Plant 1 on a sunny windowsill. He puts Plant 2 in a dark closet. After one week, he compares the two plants and draw the picture below. What science skill does Rodrigo use?
drawing conclusions
inferring
observing
predicting
Francis has been investigating the way a type of plant food
affects the growth of plants. He concludes that plants that get the food do better than the plants that do not get the food. Which of the following statements is evidence that best
supports Francis’s conclusion?
He knows that plants need water and sunlight to grow well.
He read on the label that the plant food would help plants grow.
Plants without the food grew better than plants that got the food.
Plants with the food grew better than plants that did not get the food.
For an experiment, Rosalinda set up four beakers as shown below.
size of the measuring cup
amount of baking soda
amount of liquid
type of liquid
When Katie reported to the class on her experiment, this was her final statement:
My experiment shows that the more times a wire is wrapped around the nail the stronger the electromagnet becomes.
Which of the following is the best description of what Katie did in her final statement?
classify data
make a prediction
identify a problem
draw a conclusion
Barack did an experiment to test the amount of iron in different types of fruit juices. What is the best reason why Barack should record the steps of his experiment in his report of the results?
to test each type of fruit juice the same way
to be sure the experiment can be repeated to confirm the results
to be sure he uses the same amount of fruit juice for each test
to be sure he does not repeat the test using the same fruit juice twice
Zack is testing whether temperature affects the distance a rubber band can be stretched before it breaks. He heats some rubber bands in the microwave oven. He puts some on the kitchen counter. He puts some in the refrigerator and some in the freezer. Which set-up is the control group?
rubber bands on the counter
temperatures of the rubber bands
distance the rubber bands can stretch
number of rubber bands in each group
Using one or more of your senses to gather information is called
Inferring
Observing
Predicting
Hypothesizing
An educated guess or testable prediction is a
theory
law
hypothesis
conclusion
What type of graph shows trends over time?
Circle graph
Line graph
Bar graph
What type of graph is used to display percentages of a whole?
circle graph
line graph
bar graph
A prediction about a problem that can be tested is a ____________________
variable
hypothesis
theory
law
One way to analyze data from a study is to _____________
make a graph
develop a hypothesis
recognize a problem
Which of the following is a scientific observation?
The potato is brown in color.
The potato tastes the best.
The potato is better than the avocado
The potato smells funny.
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 variable?
sneezing
Justin
amount of tissue
type of tissue
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 variable?
type of music
heart rate
how long they listend to music
Mr. McNeice
How many variables should be tested at a time in a scientific investigation?
none
one
two
three
What step does every scientific experiment begin with?
hypothesis
question/problem
procedures
conclusion
Jackie sets up an investigation to find out how many paperclips she can pick up with an electromagnet. She takes a long iron nail, wraps insulated wire around it 40 times, and connects the wire ends to the opposite terminals of a D-cell battery.
Jackie touches the tip of the nail to a pile of 100 paperclips and picks up 15 of them. She tries the investigation again and picks up 15 paperclips. Jackie concludes that her electromagnet can pick up 15 paperclips. What should Jackie do to improve her investigation?
Jackie should use a regular magnet and not an electromagnet.
Jackie should use a different type of battery.
Jackie should do more trials to make sure her results are valid.
Jackie should begin with more than 100 paperclips.
A group of people trained to climb a mountain. As they practices in high altitudes, a researcher measured changes in their lung strength. Why is it important that her study has a control group?
to ensure that everyone in the group was strong enough to climb a mountain
to test equipment for measuring lung strength
to share her research with as many people as possible
to compare typical lung strength with the effects of training
Students measured the amount of an unknown substance that dissolved in water at different temperatures. What was the variable in this investigation?
water temperature
water volume
amount dissolved
unknown substance
Students planted bean seeds in the same kind of soil in separate cups. The cups were put next to each other on a sunny windowsill. Cup 1 was given 10 mL of water every other day. Cup 2 was given no water. Which of these is the variable in the experiment?
The type of seed
The amount of water
The type of soil
The amount of sunlight
Which is an example of a scientific question...
does the amount of water I drink effect how much I pee?
Why is the sky blue?
Do dinosaurs eat?
Is Science fun?
Several students want to know whether pea, bean, or corn plants grow the fastest. The students plant each of three peas, three beans, and three corn kernels in the same type of soil and in the same type of pot. Then they place all nine pots on the same windowsill and give each seed the same amount of water for two weeks. Which data are most important to record in order to compare the growth of pea, bean, and corn plants?
type of seed and plant height
amount of water and type of seed
plant height and hours of sunlight
hours of sunlight and amount of water
Which question would best be answered with an experimental investigation?
How does a seed grow into a tomato plant?
Do tomato plants grow faster than cabbage plants?
How does temperature affect cabbage plant growth?
Do tomato plants have longer roots than cabbage plants?
Which of the following statements correctly describes the difference between experiments and investigations?
Experiments have predictions and conclusions, but investigations do not.
Experiments do not require direct measurements, which are needed for investigations.
Experiments are conducted only in a laboratory, but investigations are conducted outdoors.
Experiments use controls and a variable, but investigations develop comparisons through observations.
The variable is the ONE thing you _____.
change
keep the same
experiment with
investigate
A scientist is testing how different substances or liquids affect the rate of germination of sunflower seeds. She plants many different seeds and waters them all with different liquids or solutions. What would be considered the control of the experiment?
Seeds watered with soda.
Seeds watered with plain water
Seeds watered with saltwater
Seeds watered with juice
A gardener is trying to test if the color of the light really does effect plant growth. Which of the following is the CONTROL group
The plant growing in sunlight
The plant growing in the dark
The plant growing under a red lamp
The plant growing under a blue lamp
Why is it important for scientist to run multiple trials during an experiment?
Multiple trials make the data more reliable.
Multiple trials improve the design of the experiment.
Multiple trials improve the predictions of scientists.
Thomas and Julie wanted to find out which material would insulate their teacher's coffee cup and keep the coffee hot for the longest period of time. They first wrapped her cup with bubble wrap and recorded the temperature of the coffee once every 15 minutes for 2 hours. They repeated the investigation, this time using newspaper instead of bubble wrap, but they got the same results for both materials. What could they do to make sure their results are valid?
Repeat their experiment
use tea instead of coffee
use a different themometer
conduct their investigation in colder room
Kimberly made a model to show the spinning of a tornado. She filled a 2-liter soda bottle with water. Then she connected it neck-to-neck with an empty 2-liter bottle. She flipped the water-filled bottle upside down and turned it a few times. What is the difference between this activity and an experiment?
this activity is not repreatable
there is no well-defined variable
No prediction was made before the activity began
The activity is not done under controlled conditions
Kimberly wanted to show the spinning of a tornado. She filled a 2-liter soda bottle with water. Then she connected it neck-to-neck with an empty 2-liter bottle. She flipped the water-filled bottle upside down and turned it a few times. What is this an example of?
experiment
survey
model
interview
Chloe wonders what type of string is best for growing crystals. She uses 4 types of string. She puts them all in glasses with the same baking-powder solution. Then she observes the crystal growth. How do you know that Chloe is doing an experiment?
She will form a conclusion about the type of string that is best
She is observing how well crystals grow on each string
All conditions except string type are constant
Before she started, she made a plan
