NEW
Font size
WorksheetsThe Practice of Science Review
Total questions: 35
Worksheet time: 35mins
Which metric unit is not used in science community?
meters
centimeters
millimeters
inches
Which statement is true about the nature of science?
Science can answer all questions.
Science is only a collection of facts.
Scientific knowledge is tentative (subject to change).
There is only one way to do science/
We need science for new technology to be invented.
What was the dependent variable?
What was the independent variable?
Billy wants to run an experiment to determine if increasing the temperature of water increases the amount of sugar that can be dissolved in it. In such an experiment, which of the following would be the independent variable?
The temperature of the water
The amount of water
The amount of sugar being dissolved
The type of sugar being dissolved
Controlled scientific experiments include variables. One kind of variable is an independent variable. Another kind of variable is a dependent variable. Which statement describes the difference between the two?
The independent variable is the thing being manipulated in an experiment. The dependent variable is the result being measured.
The dependent variable is the thing being manipulated in an experiment. The independent variable is the result being measured.
There is no difference between the two.
An independent variable is always constant (stays the same). A dependent variable is always changing.
Kelly did an experiment where she took three groups of plants and gave them a different amount of fertilizer. Group 1 received no fertilizer. Group 2 got one teaspoon of fertilizer. Group 3 received two teaspoons of fertilizer. All the plants received the same amount of water and soil, and were placed in the same location. Which of the following groups of plants was a control group?
Group 1
Group 2
Group 3
Group 4
Chap wanted to see if planting seeds deeper into the soil had an effect on plant height. He took 10 containers and planted radish seeds at varying depths. He used the same type of soil, kept the plants in the same location, and gave them each 20 mL of water each day. Then he measured the height of the sprouts every day for 2 weeks. What is the dependent variable in Chap's experiment?
The height of the sprouts
The depth the seeds were planted into the soil
The amount of water the plants received.
The type of soil
Which of the following is an example of a hypothesis?
If temperature of water increases, then the maximum amount of sugar that can be dissolved in the water increases.
Does the temperature of water affect how much sugar it can dissolve?
The data shows that as the temperature of the water increases, the greater the amount of sugar can be dissolved in it.
Which of the following is an example of an inference?
The lawn across the street is greener because it gets watered every day.
The car is red.
Cats have two eyes.
The coffee has a temperature of 85o Celsius.
Which of the following is an example of an inference?
It is going to rain soon because the clouds in the sky are turning dark and gray.
Redwood trees can grow to a height of 300 feet.
Gold has a density of 19.3 g/cm3
The peak wavelength of sunlight is about 400 nanometers
John is investigating how the type of material used to make a ball affects how high it bounces. He drops a rubber ball 10 times, a plastic ball 10 times, and a wooden ball 10 times. The bounce height is recorded. John repeating dropping each ball 10 times is an example of...
repetition.
replication.
identifying variables.
making an inference.
Anna is trying to determine how the mass of a pendulum affects its period. She has 2 kg, 4 kg, and 8 kg pendulums of equal length. The measures the period of each pendulum 5 times. Anna repeating her measurement of each pendulum 5 times is an example of...
repetition
replication
identifying variables
making an inference
Joanna wants to determine the melting point of salt. She heats up a furnace, adds salt to it, and using an infrared thermometer records the temperature when the salt turns into a liquid. She records a temperature of 1,470oF. Rebecca reads about Joanna's investigation, and repeats it. Rebecca recorded a temperature of 1,475oF. Rebecca repeating Joanna's investigation is an example of...
replication
repetition
generating a hypothesis
doing background research
Jerry does an experiment to see if students perform better on math tests when listening to classical music. 100 students take a math test while listening to classical music. The other 100 students work in silence. The average score of both groups ended up being identical. Nathan reads Jerry's results and repeats Jerry's experiment. In Nathan's results, the students listening to classical musical had 10% higher math test scores than the group that worked in silence. Nathan repeating Jerry's experiment is an example of...
replication
repetition
identifying variables
analyzing data
What is the x-axis label?
iPhone Charging Speed
Time (minutes)
Capacity (% charged)
The origin
What is the y-axis label?
Leona's Job Earnings
Newspapers Delivered
Total Pay (dollars)
What is the label for the x-value (input)?
Dog Sitting Earnings
Number of Days
Amount Earned ($)
How much money ($) would she earn in 5 days?
$70
$80
$16
$56
What is the label for the y-value (output)?
Dionne's Boat Rental
Hours Rented
Amount Paid
According to this chart, which country spent the least money on books in 2004?
Germany
France
Italy
Australia
Which city has the highest average temperature in August?
Tokyo
New York
Berlin
London
Which type of graph best represents data over a set period of time?
line
bar
table
circle
You have been asked to make a graph which represents everyone's favorite video game system in your class. Which type of graph would work best?
line
bar
circle
table
