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WorksheetsScience Fusion Unit 1 Review
Total questions: 40
Worksheet time: 23mins
It rarely rains in deserts. Based on logical reasoning, which of the following statements is true?
Prickly plants are best suited for life in deserts.
Desert organisms can go a long time without water.
Desert organisms get moisture from the air.
Small animals are best suited for life in deserts
Taylor wants to know how quickly certain plants grow in her garden. What should Taylor do to collect information about their growth?
Form an opinion about them.
Analyze evidence of insects.
Measure the plants accurately.
Draw conclusions and communicate results.
Joseph wonders what kinds of birds live in his neighborhood. What skill will Joseph use to collect information about the variety of birds in his neighborhood?
Infer
Order
Observe
Communicate
Why do scientists conduct investigations?
to practice doing experiments
to learn about recent discoveries
to demonstrate scientific procedures
to answer questions about the natural world
Scientists often perform repeated investigations. What is the main reason for this?
to form new theories
to improve their research
to increase the reliability of results
to win prizes for their work
This map was made on Tuesday based on information collected by observations of a storm’s movement.What are meteorologists doing when they make storm tracks such as this one?
predicting
testing their ideas
explaining how a hurricane develops
gathering information to determine the strength of a hurricane
Researchers surveyed people to find out how many would not evacuate if a hurricane were approaching. In 1992, 18% would not evacuate. In 1995, 34% would not evacuate. In 1999, 46% said they would not evacuate. How can scientists use this information?
to predict where people will go when they evacuate
to explain why people choose not to evacuate
to predict how many people will not evacuate
to predict which route people will use to evacuate
Hurricane Donna was one of the most severe hurricanes on record. What empirical evidence could scientists analyze and evaluate to support this statement?
maps of hurricane locations
opinions of hurricane survivors
predictions of new storms
wind speeds of recorded hurricanes
What should you do if you want your friends to believe a statement you make?
Ask a question you can test
Gather evidence to support it
Make a prediction
Collect information about your friends
The graph shows the estimated number of mice in a field. Which is a reasonable explanation that can be inferred from evidence presented on this graph?
The number of mice will drop.
A new predator has appeared
There is plenty food and water for the mice in the field.
The farmer’s field will be ruined by so many mice
The chart shows the steps of a scientific method. Which statement describes this scientific method?
It should be considered a flexible guide.
It lists each step according to importance.
It is the only one that scientists use.
The results should not be communicated if you don’t like them.
Rosa conducts an investigation. What could she do to convince others that her results are valid?
Repeat the investigation to increase the reliability of her results.
Write a convincing statement explaining how good she feels about the investigation.
Discard the data because it does not agree with her hypothesis.
Adjust the investigation to make the results completely agree with her hypothesis.
Models allow scientists to test things that might be too expensive or difficult to test using the real item. Which would be an investigation that could use a model?
whether a new spray will repel mosquitoes
how many times per day a robin leaves her nest
how much weight a new bridge can support
how much water a cubic meter of sand can hold
Students were asked to formulate testable hypotheses. Their responses are listed. Which of these is testable?
Blue is the best color.
Summer is nicer than fall.
Dogs are better than cats.
A beagle can jump higher than a Persian cat.
You want to know if the mass of a paper airplane will affect how far the airplane will fly. Which factor will you purposefully vary to determine its effect?
the mass of the plane
the distance traveled
the height the plane is released from
the material the plane is made from
Students are placing books under a ramp to change the ramp’s height. Then they are measuring how far a toy car travels when it is released at the top of the ramp. Which data table should they use?
The thermometer shows the temperature on a very hot day. Which temperature reading is correct?
38 °C
38 °F
100 °C
110 °F
You can use many different tools to make measurements. Which of these tools is the appropriate equipment to use to measure the mass of an object?
Measuring Cup
Measuring Tape
Balance
Thermometer
A spring scale is the appropriate equipment for measuring which of these quantities?
Force
Mass
Volume
Length
Some scientific tools are used for making observations. Which of these tools would be useful for collecting and analyzing observations about the behavior of ants?
Hand Lens
Metric Ruler
Electronic Balance
Graduated Cylinder
When you perform an experiment, it is important that measurements are accurate. What determines the accuracy of a measurement?
how close the measurement is to the actual value
the number of times that it is repeated
the ability of other people to try the experiment
whether the results of an experiment match the predicted results
In science, we often gather information with our senses by watching, listening, smelling, and touching. For example, you may record how the color of a flower changes. What is this process called?
stating hypothesis
forming conclusions
making observations
performing experiments
A doctor explains that drinking two glasses of milk in the morning will give students more energy. Which of the following could be used to analyze, evaluate and critique this scientific explanation?
a brochure from the doctor stating the benefits of mil
data from experimental testing about drinking milk in the morning
a TV advertisement that says drinking milk in the morning gives people plenty of energy
statements from five people about how drinking milk in the morning gives them energy
Which of the following is an experiment in which a person can control a variable?
Observe the behavior of ants around an anthill
Tell whether it rained every Wednesday for an entire month
Count the number of insects in a piece of ground measuring 1 m square
Determine whether plants grow better in full sunshine or partial sunlight
Suppose that a scientist suggests that the size of an insect population depends on the temperature. What observational testing could you use to analyze, evaluate, and critique this explanation?
I could observe the insect population only in winter.
I could observe the insect population in the laboratory
I could observe the insect population in different areas.
I could observe the insect population throughout the year.
Scientists are not the only ones who gather information. For example, historians gather information to describe what has happened in the past. However, scientists gather information differently than others. Which way of gathering information do only scientists use?
reading
observing
recording
experimenting
Kyle is wondering what he is getting for his birthday. He decides to shake the box that contains his present. Kyle did not realize it, but he was acting like a scientist. What was the first step Kyle took in this situation that a scientist also takes?
asking a question
collecting evidence
drawing a conclusion
developing an explanation
Scientists communicate valid conclusions in written form. Why is it important for scientists to do this?
to learn from each other
to keep their work secret
to compete with other scientists
to avoid repeating experiments
Mr. Bryant wants his class to observe and measure baby mice and record the data in their science notebooks. One student’s notebook looks like the chart above. Analyze the information. What is the most reasonable explanation that can be constructed?
A mouse will never weigh more than 6 g.
Baby mice can vary in size, color, and activity level.
Baby mice will never be less than 11 mm in length when they are born
Brown baby mice are bigger than white baby mice.
Each measuring tool is designed to measure a specific property of an object or material. Which of these tools can be used to measure the volume of a material?
measuring cup
spring scale
balance
thermometer
Which of the following is always an important part of an experiment?
making a working model
observing things in nature
making drawings of things observed
identifying and controlling variables
A science class went on a field trip to study the organisms that live in a stream near the school. Which of these tools would be useful for collecting and analyzing information about the animals living in the stream?
Graduated Cylinder
Collecting Net
Telescope
Electronic Scale
Which of these is the metric unit for measuring mass?
kilogram
liter
millimeter
pound
Which of the following is not a scientific investigation?
performing a controlled experiment
using a model to test a hypothesis
observing how five caterpillars change into butterflie
writing a letter about why it’s important to protect plants and animals
Which of the following would be best done using repeated observation rather than an experiment?
Determine the average number of times during a week in May that a group of bees visits flowers.
Determine whether a diet that includes honey every day will reduce allergies
Determine which type of flower gives out the strongest scent.
Determine whether a bee hive is stronger than a wasp nest
Sanjay inferred that a train was approaching rapidly based on the way the noise from the train sounded. Which skill is Sanjay using?
classifying
communicating results
planning an investigation
using time/space relationships
Jose tests the effects of fertilizers on four seeds of the same kind of plant. He gives each plant the same amount of water and sun. The table shows his results. What can Jose conclude about the fertilizers?
Fertilizer 2 has more of the nutrients the plant needs
Plants produce thicker stems without fertilizers
Fertilizer 3 does not help plants grow taller
Plants grow taller with Fertilizer 1 than they do with Fertilizer 2.
Scientists usually write reports about their investigations. Why do they do this?
to classify results
to ask questions
to perform experimental trials
to communicate their work to other scientists
Which statement demonstrates the most scientific observation?
The water is changing.
The flame is causing a change.
Bubbles are forming in the liquid.
Steam forms when water gets hot
What does the picture demonstrate about classroom investigations?
how to ask a well-defined question
the right way to handle boiling liquids
the use of safe practices and safety equipment
how to measure the volume of hot and cold liquids
