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Praxis. Elementary Ed. Science 2026

Question 31

Praxis. Elementary Ed. Science 2026. Of the following, which is a reactant in the process of photosynthesis that is acquired by plants from the atmosphere?

• ATP
• NADPH
• Oxygen
• Carbon dioxide

Question 32

Which of the following types of pathogen is responsible for the common cold?

• Bacterium
• Virus
• Fungus
• Protozoan

Question 33

Which of the following organisms are generally the first to colonize an existing community that has been devastated by fire?

• Grasses and shrubs
• Deciduous trees
• Cacti and other succulents
• Coniferous trees

Question 34

Doing which of the following to a sample of gas in a container would most likely make the gas molecules move faster?

• Condensing
• Cooling
• Freezing
• Heating

Question 35

Which of the following involves a chemical change?

• Crushing a can
• Boiling water
• Burning a sugar cube
• Breaking a bottle

Question 36

The surface gravity on Mars is less than the surface gravity on Earth. Based on the information presented, which of the following properties would be significantly different for a solid object when it is on the surface of Mars compared with when it is on the surface of Earth?

• Length
• Mass
• Volume
• Weight

Question 37

Which of the following is an example of an element?

• Sand
• Salt
• Sulfur
• Sawdust

Question 38

In an experiment, a student observes an object as it travels in one direction along a straight path. Which TWO of the following measurements does the student need to calculate the average speed of the object?

• The object’s mass
• The distance traveled
• The elapsed time
• The environmental temperature