Elementary Content Exam (305) -
Science Questions And Answers
Which of the following technological developments would be most useful in reducing one of the
causes of global climate change? - ANS production of efficient and inexpensive electric
cars
Fifth grade students have constructed models of Earth out of paper-mache, using straws for
Earths axis. The students move their models around a light representing the sun, stopping to
rotate it at four positions representing the times of the annual equinoxes and solstices. Which of
the following questions would best help students apply their observations of changes in light and
shadow during the movement of their model planets? - ANS Why are all of the seasons the
same at the equator?
Sixth grade students perform an investigation to compare the densities of three rectangular
blocks that are composed of different substances. Lab teams take measurements of each block
using a triple-beam balance. Which of the following scientific tools would best enable the
students to complete their investigation? - ANS meterstick
Two ramps set up in a third grade classroom at the same angle; one ramp is covered with
smooth cloth and the other is covered with rubberized matting. At a signal, a student releases a
model car of the same size and structure down each of the ramps. After observing this example,
the class declares that cars move faster on smooth surfaces than matted ones. The teacher
instructs them to perform the same demonstration several more times. Which of the following
areas of scientific thinking will be strengthened for students following their teacher's instruction?
- ANS One data point should not be used to generalize a conclusion
Third graders who are beginning to learn about space exploration ask how it is possible to travel
from Earth to the moon. The most effective way for the teacher to introduce the technological
advances related to this achievement is by: - ANS providing materials for students to
investigate the movement of balloon rockets
Elementary school students have been asked to propose questions that they are interested in
investigating. Which of the following student proposals best represents a testable hypothesis? -
ANS Which brand of paper towels absorbs the most liquid?
During a unit on simple machines, students construct model seesaws using a ruler for the lever
and cardboard tubing for the fulcrum. Students place a block on one end of the lever and
Science Questions And Answers
Which of the following technological developments would be most useful in reducing one of the
causes of global climate change? - ANS production of efficient and inexpensive electric
cars
Fifth grade students have constructed models of Earth out of paper-mache, using straws for
Earths axis. The students move their models around a light representing the sun, stopping to
rotate it at four positions representing the times of the annual equinoxes and solstices. Which of
the following questions would best help students apply their observations of changes in light and
shadow during the movement of their model planets? - ANS Why are all of the seasons the
same at the equator?
Sixth grade students perform an investigation to compare the densities of three rectangular
blocks that are composed of different substances. Lab teams take measurements of each block
using a triple-beam balance. Which of the following scientific tools would best enable the
students to complete their investigation? - ANS meterstick
Two ramps set up in a third grade classroom at the same angle; one ramp is covered with
smooth cloth and the other is covered with rubberized matting. At a signal, a student releases a
model car of the same size and structure down each of the ramps. After observing this example,
the class declares that cars move faster on smooth surfaces than matted ones. The teacher
instructs them to perform the same demonstration several more times. Which of the following
areas of scientific thinking will be strengthened for students following their teacher's instruction?
- ANS One data point should not be used to generalize a conclusion
Third graders who are beginning to learn about space exploration ask how it is possible to travel
from Earth to the moon. The most effective way for the teacher to introduce the technological
advances related to this achievement is by: - ANS providing materials for students to
investigate the movement of balloon rockets
Elementary school students have been asked to propose questions that they are interested in
investigating. Which of the following student proposals best represents a testable hypothesis? -
ANS Which brand of paper towels absorbs the most liquid?
During a unit on simple machines, students construct model seesaws using a ruler for the lever
and cardboard tubing for the fulcrum. Students place a block on one end of the lever and
