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Middle School Praxis 5442 Practice Questions and Answers Latest Version Already Passed
What is the main function of the mitochondria in plant and animal cells?
- Produces glucose
- Stores genetic information
- Produces proteins
✔✔B) Converts energy from food into usable cellular energy
Which property of water allows it to dissolve many substances?✔✔A) Polarity
- High boiling point
- Low surface tension
- Transparency
What causes the seasons on Earth?
- The distance from the Sun
✔✔B) The tilt of Earth’s axis 1 / 4
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- The speed of Earth’s rotation
- The shape of Earth’s orbit
Which of the following best describes Newton’s First Law of Motion?✔✔A) An object in motion stays in motion unless acted on by a force
- Force equals mass times acceleration
- Every action has an equal and opposite reaction
- Energy is never created or destroyed
Which part of the atom contains protons and neutrons?
- Electron cloud
- Shell
- Orbit
✔✔B) Nucleus
What is the primary source of energy for most ecosystems?
- Moonlight
✔✔B) Sunlight 2 / 4
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- Heat from the Earth’s core
- Chemical energy in rocks
Which human activity contributes most to the increase in greenhouse gases?
- Planting trees
- Recycling plastic
- Using wind turbines
✔✔B) Burning fossil fuels
What type of bond is formed when electrons are shared between atoms?✔✔A) Covalent
- Ionic
- Metallic
- Hydrogen
Which layer of the Earth is responsible for its magnetic field?
- Crust
- Mantle 3 / 4
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✔✔C) Outer core
- Inner core
What is the purpose of a control group in an experiment?✔✔A) To serve as a baseline for comparison
- To guarantee accurate results
- To change the independent variable
- To eliminate bias
Which organ system is primarily responsible for transporting nutrients and oxygen in the body?
- Respiratory system
- Digestive system
- Nervous system
✔✔B) Circulatory system
What phase change occurs when a solid becomes a liquid?
- Condensation
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✔✔B) Melting