WorksheetsScience Test # 2
Total questions: 25
Worksheet time: 13mins
Yolanda, Van, and Kate are on a mission: "Does the type of water make our bean plants grow taller?" Which twist would make this question impossible to test?
Asking, "Why do bean plants look nicer in rainwater?"
Measuring height in centimeters weekly
Using equal-sized pots for each plant
Giving each plant the same sunlight
Monica, Tom, and Sophie decided to have a jump rope contest! They recorded how many jumps they could complete after practicing for different amounts of time.
How does practicing longer affect the number of jumps?
More practice → fewer jumps
Only 10 minutes improves jumps
Practice has no effect
More practice → more jumps
Yadi, Monica, and Tom are curious scientists! They want to see how different temperatures affect how quickly ice melts. They set up a cool experiment and are excited to make a graph of their results. Which variable should they put on the X-axis?
The time it takes for the ice to melt
The amount of water left
The temperature of the air
The total amount of ice cubes used
Mike and Kyra wanted to see if the sugar content in ice cream affects how many people rate it as their favorite. They offered ice cream with low, medium, and high sugar levels to 30 classmates and recorded how many chose each. What can Mike and Kyra conclude from their results?
Higher sugar content → fewer students like it
Sugar content has no effect on preference
Higher sugar content → more students like it
Only medium sugar is popular
Yolanda, Kyra, and Cary are on a mission to discover which sports drink keeps them energized and hydrated the longest during their intense soccer practice. Which variable is the independent variable in their experiment?
The type of sports drink
The number of athletes
The body temperature after exercise
The distance each athlete ran
Monica, Yadi, and Sophie are teaming up to design a cool basketball experiment. Which of these is a non-testable question for their awesome project?
Does the amount of practice affect how many baskets a player makes?
Does the color of a basketball make it look cooler?
Does the size of the ball affect how high it bounces?
Does the temperature affect air pressure in the ball?
Monica and Kate are curious about how fertilizer affects plant growth. Monica adds fertilizer to her group of plants, while Kate leaves her group without any fertilizer. The group without fertilizer is the:
Independent variable
Control group
Constant
Dependent variable
Cary, Monica, and Tom are helping Kate with a plant experiment using salt water. Which statement would make the best hypothesis for their experiment?
I think salt water tastes bad.
Salt water is interesting.
If salt water concentration increases, then the plant height will decrease.
Why do plants grow taller in salt water?
Sophie, Monica, and Van are doing a plant experiment! They add fertilizer to 3 of their plants, but leave the 4th plant without any. All the plants get the same amount of sunlight and water. What are the constants in their experiment?
Sunlight and water
Type of fertilizer
Growth of plants
Size of fertilizer crystals
Cary, Monica, and Sophie are curious about how much rain fell each day this week in their neighborhood. Which question would they need to analyze data to answer?
What is your favorite color?
How much rain fell each day this week?
Why is the sky blue?
Who invented umbrellas?
Tom, Kyra, and Sophie are curious if playing background music at work will boost their productivity. They decide to track their work output after working with and without music. What’s the dependent variable in their experiment?
The work output
The type of music
The number of employees
The length of the playlist
Monica, Cary, and Van are having a friendly garden competition! They notice that when they add 0g to 10g of fertilizer, their plants grow taller. But when they try 20g, the plants actually get shorter. What does this suggest?
Fertilizer has no effect
Too much fertilizer can harm plants
Plants like unlimited fertilizer
The soil was too dry
Van, Danielle, and Monica are helping Kyra with her science experiment to see how different amounts of water affect plant growth. They decide to make a colorful graph where the X-axis shows the amount of water and the Y-axis shows the height of the plants. Which catchy acronym can they use to remember which variable goes on each axis?
DRY MIX
MIX UP
TRY FIX
AXIS FIT
Monica and Danielle wanted to find out if the color of light affects how quickly a plant grows. After 10 days, they collected this data. If Monica accidentally watered the green-light plant twice as much each day, how might that error affect the results?
The plant under green light might appear to grow better than it should.
The plant under green light would stop growing.
The plant under red light would grow faster.
It would not affect the results at all.
Yadi decides to change how much sunlight her plants get to see how it affects their growth. What is the scientific term for the variable that Yadi changes on purpose in her experiment?
Dependent variable
Independent variable
Control group
Constant
Tom, Van, and Kyra are working together on a science experiment. Why should they repeat their experiment several times?
To ensure the hypothesis changes
To make results more reliable
To create new variables
To save time
Kate, and Tom are teaming up to design an experiment to see how different amounts of sunlight affect plant growth. Which list correctly includes all the major types of variables they should consider in their experiment?
Independent, dependent, reliable
Independent, dependent, control, constants
Measurable, reliable, experimental
Variable, constant, hypothesis
Monica and Van are having a debate. Monica says, "I think yellow cars are prettier!" Why is Monica's statement considered non-testable?
It can’t be measured or controlled
It uses more than one variable
It is too specific
It includes a hypothesis
Kate and Mike are on a mission to clean slime off tiles! They want to see if lemonade or water works better. What could they change to make their experiment even better?
Use the same tile type for each test
Test one tile only
Change multiple liquids at once
Use random tile sizes
Kate and Monica are spending a sunny day at the beach and want to see if different sunscreen brands change how long it takes for their skin to burn. Which question is the best example of a real-world, testable question they could investigate?
Does sunscreen brand affect how long before skin burns?
Why do people like beaches?
Which sunscreen smells best?
Why do people get tan?
Sophie and Van are working together on a science experiment and want to create a graph to show their results. What can they do to make sure their graph is easy for everyone to understand?
Using a descriptive title and labeled axes
Leaving off numbers
Coloring it for decoration only
Plotting random points
Sophie and Kyra are working together on a cool science experiment and collect some important data. Why is it important for them to share their data with other scientists?
So others can repeat and verify their findings
So they can keep it secret from others
So they can skip the experiment
So they can avoid analyzing it
Monica and Van decided to have a sugar dissolving race! They wanted to see how the amount of sugar affects how long it takes to dissolve in water at the same temperature. Based on their results, what is the best conclusion?
The temperature of water affects how fast sugar dissolves
The more sugar added, the faster it dissolves
The more sugar added, the longer it takes to dissolve
The size of sugar crystals caused differences in time
Yadi, Van, and Sophie wanted to discover how different types of light affect plant growth. They each took identical plants and placed them in different light conditions for 2 weeks. Here’s what they found: Based on their experiment, which inference is best supported by the data?
Plants need sunlight to grow best.
Plants can grow equally in all light types.
Lamp light caused plants to grow taller than sunlight.
The no-light condition produced the healthiest plants.
Yadi, Mike, and Kate wanted to see how the angle of a ramp affects the speed of their toy race car! They set up a 1-meter track and timed how long it took the toy car to zoom down at different ramp angles. Here’s what they found: If they made a graph of their results, what kind of relationship would you expect to see between ramp angle and travel time?
As ramp angle increases, travel time increases.
As ramp angle increases, travel time decreases.
Ramp angle does not affect travel time.
The car moves at a constant speed for all angles.
