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WorksheetsScience PASS Practice Items 6th grade
Total questions: 20
Worksheet time: 40mins
A student attaches a washer to a toy parachute to investigate the relationship between parachute size and falling time. The student drops the parachute from a height of three meters and then repeats the procedure with a parachute of a different size. Each time, the student records the following measurements.
Which tools would provide the most accurate measurements to complete the chart?
The diagram shows a ponderosa pine tree. How far must water travel from the bottom leaves to the top of this ponderosa pine tree?
5 meters
15 meters
20 meters
25 meters
A student observing animals at a zoo answers the following questions.
1. How many limbs does the animal have?
2. Does the animal have gills or lungs?
3. Does the animal have a backbone?
During which task is the student most likely to use this information?
drawing a food chain containing each animal
using physical characteristics to classify each animal
identifying the preferred food sources of each animal
understanding how traits are inherited by each animal
Which gas makes up most of Earth’s atmosphere?
argon
hydrogen
nitrogen
oxygen
A student researches changes in the concentrations of greenhouse gases in the atmosphere over the past 2,000 years.
- Forests help absorb CO2.
- Burning and deforestation add CO2 to the atmosphere.
- Agriculture and fossil fuel use result in CH4 production.
- The average lifetime of N2O in the atmosphere is 121 years and of CH4 is 12.4 years.
- The industrial era began around the year 1750.
Which argument about the primary cause for the atmospheric changes is best supported by the evidence?
The changes are caused by deforestation because it removes trees that absorb CO2.
The changes are mostly caused by Earth’s current position in the solar system, which is different than it was 2,000 years ago.
The changes are caused by the long periods of time needed for N2O and CH4 to break down in the atmosphere.
The changes are mostly caused by industrial activities since those activities began at a similar time as the major changes in greenhouse gas concentrations.
This diagram shows four phases of the water cycle. Which phase of the water cycle is affected most directly by heat from the Sun?
phase L
phase M
phase N
phase O
Use the diagram to answer the question.
What happens to most of the solar energy directed to Earth?
It is absorbed by Earth.
It is reflected by Earth.
It is scattered by clouds.
It is absorbed by clouds
This map shows the normal path of the subtropical jet stream over North America.
Scientists have observed that the subtropical jet stream is moving farther north. How could this movement affect climatic conditions in North America?
Rainfall in the southern states could decrease.
Air pressure over North America could increase.
The number of hurricanes in the Atlantic Ocean could decrease.
Warm, tropical conditions in the southern states could increase.
A student is using a pendulum to demonstrate energy transformation. The student pulls the ball back before releasing it.
Which list best describes the energy of the ball on the pendulum in each diagram?
1. all potential energy 2. potential energy transferring to kinetic energy 3. kinetic energy transferring to potential energy
1. all kinetic energy 2. kinetic energy transferring to potential energy 3. potential energy transferring to kinetic energy
1. all potential energy 2. kinetic energy transferring to potential energy 3. potential energy transferring to kinetic energy
1. all kinetic energy 2. potential energy transferring to kinetic energy 3. kinetic energy transferring to potential energy
Use the pictures to answer the question.
Which two objects transform electrical energy into mechanical energy?
radio and heat pack
television and battery
battery and hair dryer
washing machine and ceiling fan
Electrical energy flowing through a circuit is measured in voltage. A teacher measured the voltage at four points on an electrical circuit.
Which statement best explains the voltage change as the current moves through the electrical circuit?
The voltage decrease is due to the chemical energy of the battery transforming into light and heat energy.
The voltage decrease shows energy being destroyed as the current moves through the electrical circuit.
The voltage decrease is due to the light energy of the battery transforming into heat and chemical energy.
The voltage decrease shows energy being created as the current moves through the electrical circuit.
One open container and three insulated, closed containers are filled with 1000 mL of ice cream. Each container is placed in the same location for one hour and the ice cream is checked for melting. The data are recorded in the graph.
According to the graph, which container is MOST effective in keeping the ice cream from melting?
the open container
the rubber-lined container
the aluminum-lined container
the fiberglass-lined container
A group of students wants to build a ramp to move boxes from the floor up to a stage. How can the students reduce the amount of effort needed to push the boxes up the ramp?
by making the ramp as long as possible
by making the ramp’s height and length equal
by building the ramp out of a lightweight material
by covering the ramp’s surface with a soft rubber mat
Which structure of a dolphin has the same function as the gills of a fish?
fin
heart
lung
mouth
Which pair of statements best explains an environmental stimulus and a bear’s response to survive winter?
Environmental stimulus: The bear senses that food is becoming scarce. Response: The bear consumes less food, and its heart rate increases.
Environmental stimulus: The days are becoming shorter. Response: The bear consumes more food, and its heart rate decreases.
Environmental stimulus: The bear is hungry. Response: The bear consumes more food, and its heart rate increases.
Environmental stimulus: The days are becoming longer. Response: The bear consumes less food, and its heart rate decreases.
Study the table.
Based on this information, what inference can be made?
Both species are cold-blooded.
Both species are warm-blooded.
Species A is cold-blooded and Species B is warm-blooded.
Species A is warm-blooded and Species B is cold-blooded.
A student investigated the growth of yeast X and yeast Y at different temperatures by using the following procedure.
Procedure
• Each type of yeast was placed in individual test tubes containing identical sugar solutions.
• The test tubes were then heated at varying temperatures. • The student recorded growth by measuring the height of froth (foam) produced by each yeast mixture.
The graph shows the results of this investigation.
Which explanation of yeast growth is best supported by the student’s data?
Yeast Y can grow at greater temperatures than yeast X can.
Both yeasts experience peak growth at about the same temperature.
Yeast Y shows more growth above a temperature of 30°C than yeast X shows.
Both yeasts show increasing growth at increasing temperatures of 25°C or less.
Study the diagram.
Which plant process is shown?
respiration
germination
transpiration
photosynthesis
A student claims that plants grow and develop. The student plans to perform an investigation using seedlings to obtain evidence to support this claim. The chart shows the steps of the investigation.
Which step of the investigation would provide evidence to support the student’s claim?
step 1
step 2
step 3
step 4
When a plant is lit from one side, cells on its unlit side become longer. This bends the plant toward the light source.
Which two properties of living organisms does this best demonstrate?
growing and developing
responding to stimuli and reproducing
obtaining energy resources and reproducing
obtaining energy resources and responding to stimuli
