Scientific inquiry & Substances
Of the following substances, which is safest to use in a fourth-grade lab activity?
Lemon juice
The tendency of an object to resist a change in its motion is known as
Inertia
In animals, which of the following cell structures is most directly associated with the production of chemical energy?
Mitochondria
Of the following gases, which is found in highest abundance in the lowest layer of Earth's atmosphere, the troposphere?
Water Vapor
Giving a written multiple-choice final examination at the end of the school year is an example of
a summative assessment.
Of the following, which is most appropriate to use to measure atmospheric pressure?
Barometer
Which of the following is the number of neutrons in an atom of chlorine-37 (mass number 37)?
20
Which of the following is an example of homologous structures?
A bat wing and a human arm
Which of the following is an igneous rock?
Granite
Of the following, which best illustrates a student inquiry-based activity?
Students conduct an acid-base titration with vinegar and baking soda after developing a hypothesis about neutralization.
Carbon dioxide is produced and emitted into the atmosphere during the operation of which of the following?
Combustion engine
Which of the following is best classified as a Brønsted-Lowry base?
Ca(OH)2
Marine birds use salt glands to remove excess salt from the seawater they drink. The maintenance of a balance between water and salt in marine birds is an example of
homeostasis
Which of the following is a scale of mineral hardness used to help identify minerals?
Mohs
Which of the following student statements is an example of a student misconception about science?
Objects must have a large amount of air in them in order to float.
Ozone in the stratosphere is most closely associated with which of the following?
Protection from ultraviolet radiation
Pitch is a characteristic of sound that is related to which of the following properties of a sound wave?
Frequency
Certain birds that forage for insects on the ground around grazing animals exhibit much greater success in capturing prey than when they forage alone. The observation described is an illustration of which of the following?
Commensalism
At a fixed atmospheric pressure, the temperature at which water vapor in the air condenses at the same rate that liquid water evaporates is called the
dew point
Of the following, which would be most helpful in expanding the students' knowledge after a short introductory lesson about forces?
A lab activity in which students slide objects made from various materials down an inclined plane
The concept of force is involved in the explanation of which TWO of the following?
Plate tectonics & gas pressure
If the chemical equation above is balanced using the smallest possible whole-number coefficients, the coefficient for NO2(g) would be which of the following? __ N2(g) + __ O2(g) → __ NO2(g)
2
Which of the following is a true statement about nucleic acids?
They store and transmit genetic information.
Wispy, feathery clouds that form at relatively high altitude are called
cirrus clouds.
Students are asked to build model windmills using materials found in the home or classroom. Small generators and electrical connectors are provided by the teacher, as well as fans to simulate wind. Once the models have been built and tested, which of the following questions asked by the teacher would best encourage students to develop hypotheses about ways to improve the energy efficiency of their models?
How would changing the shape or position of the windmill blades affect the energy efficiency of your model?