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WorksheetsCategory 2 Science STAAR Review
Total questions: 27
Worksheet time: 2hrs 2mins
A student observes ice forming on the edge of a school building. At what temperature did the water outside the school building most likely begin to change to ice?
100*C
32*C
25*C
0*C
The temperature at which a substance changes from liquid to gas (for water this is 100 degrees Celsius, 212 degrees Fahrenheit)
boiling point
melting point
evaporation
condensation
A student made a mixture using equals amounts of salt and pepper. The salt grains were the same size as the pepper grains. What should the student do to most easily separate the pepper from the salt?
Use a pair of tweezers to remove each grain of pepper
Run a small magnet through the mixture to attract the pepper
Put the mixture in water and filter the pepper out of the water.
Use a strainer with a fine wire mesh to remove the pepper
A mixture of beads was placed in a container, as shown below. The beads are of various sizes, and each one is made of plastic, glass or steel. The mixture would be easy to separate because all the beads....
are less dense than water
are solids
have the same mass
are attracted to magnets
A student uses a spring scale to pull a 50-gram block horizontally across a wood desk. Then the student pulls the block the same distance across surfaces of carpet, sandpaper, and glass. Which question is this investigation most likely designed to answer? (5.6D)
How do block of different sizes react to force?
How do different surfaces affect the amount of force needed to move a block?
How do blocks affect spring scales?
How does the mass of a block change when it is pulled across a desk?
A student observes that the craters on the moon are different sizes. The student designs an experiment to study the formation of craters. The materials for the experiment are marbles and a pan of flour. The student makes a hypothesis that the size of the craters made on the surface of the flour will depend on the height from which the marble is dropped. Some of the steps in the student's experiment are described in the picture. Which of these is most likely Step 3 in the student's experiment? (5.6D)
Drop the same marble from different heights into the pan of flour
Drop marbles of different masses from the same height into the pan of flour
Drop marbles of different sizes from different heights into the pan of flour
Drop a single marble one time into the pan of flour
A student designs an experiment to test the force of a spring using a spring launcher and four spheres with the same diameter but with different masses. What other piece of equipment would be most useful for this experiment? (5.6D)
A graduated cylinder to measure the volume of each sphere before the sphere is launched
A beaker to collect the spheres after they are launched
A stopwatch to measure how long it takes to load each sphere on the spring
A meterstick to measure the height each sphere reaches after the sphere is launched
A student designs an experiment to test the effects of the width of a piece of elastic on the elastic's ability to stretch. The student selects four pieces of elastic with different widths but the same length. The student then attaches blocks with different masses to the pieces of elastic. The results of the student's experiment are shown. What should the student do to improve this experiment? (5.6D)
Use blocks of equal mass on the four pieces of elastic
Use blocks with enough mass to cause the four pieces of elastic to break
Use more than four pieces of elastic and four blocks
Use four pieces of elastic with different lengths but the same width
Students drop the same heavy ball onto identical blocks of soft clay from different heights. For each height they measure the depth of the dent the ball makes in the clay. Why is depth of the dent different in each trial? (5.6D)
The size of the ball changes.
The material of the ball changes.
The mass of the ball when it hits the clay changes.
The force of the ball when it hits the clay changes.
The diagrams show two trials of an experiment in which a spring scale was used to measure force. This experiment can be used to determine--- (5.6D)
how mass affects the force needed to move objects
how force affects the mass of two objects
how the fore used to pull a dictionary affects the mass of a box of marbles
how the mass of a box of marbles affects the mass of a dictionary
The diagram shows a view of a ball from above a table. The ball is rolling across the table. A student lightly taps the rolling ball in the direction shown in the picture. In which direction does the ball most likely move after the student taps the ball? (3.6B)
The picture shows a pulley system that can be used to lift a box. Which of these should a person do to lift the box? (3.6B)
Tie the end of the rope to the box
Tie the end of the rope to the ceiling hook
Pull the end of the rope downward
Allow the end of the rope to move upward
Four students stand facing a box. The diagram below shows an overhead view of the box. The numbered circles represent the positions of the students. What do the students need to do to slide the box to the northeast? (3.6B)
Students 1 and 2 push, and Students 3 and 4 pull.
Students 1 and 4 push, and Students 2 and 3 pull.
Students 2 and 3 push, and Students 1 and 4 pull.
Students 3 and 4 push, and Students 1 and 2 pull.
Two students are playing on a swing set. Student 1 is leaning back and extending her legs as she moves upward. Student 2 is sitting on the swing with his feet on the ground. Which statement describes how position and work are related in this picture? (3.6B)
Both students are doing work even if only one student is changing position.
Student 1 is changing position because work is being done on the swing.
Work done by Earth's gravity prevents Student 2 from changing position.
Work is being done on both students by the swings because one swing is changing position.
The two pictures show part of an investigation. A magnet, a book, and a paper clip are on a sheet of lined paper. In Picture 1 a student slides a magnet closer to the book. The student holds the book still in both pictures. Which statement about this investigation can be supported by the result shown? (3.6B)
Work was done on the magnet, the book, and the paper clip.
Work was done on the magnet and the paper clip only.
Work was done on the magnet and the book only.
Work was done on the magnet only.
The picture shows an athlete hitting a ball with a tennis racquet. What is the athlete demonstrating in the picture? (3.6B)
Doing work by pushing the ball and changing its motion and position
Changing the position but not the motion of the ball
Doing work by pulling the racquet and changing the ball's position but not its motion
Changing the position and motion of the ball without doing any work
