Elementary Education: Science Content Knowledge Flashcards
7 cards from real PRAXIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Elementary Education: Science Content Knowledge flashcards as text
Which layer of Earth is composed mostly of liquid iron and nickel?
Answer: Outer core
The outer core is liquid iron and nickel and generates Earth's magnetic field.
The Moon appears to change shape over a month because of what?
Answer: The angle of sunlight we see reflected
Moon phases result from the changing portion of the sunlit Moon visible from Earth.
Which simple machine is a doorknob an example of?
Answer: Wheel and axle
A doorknob is a wheel and axle that turns to move a latch.
What is the primary gas that plants take in for photosynthesis?
Answer: Carbon dioxide
Plants absorb carbon dioxide and release oxygen during photosynthesis.
An animal with a backbone is classified as which of the following?
Answer: Vertebrate
Vertebrates are animals that possess an internal backbone or spine.
Which instrument would best measure the temperature of a liquid?
Answer: Thermometer
A thermometer measures temperature, while the other tools measure pressure, wind, or volume.
When mixing sand and water, what type of change occurs?
Answer: Physical change
Mixing sand and water is a physical change because no new substance forms and it can be separated.