1
Praxis II Middle School Science 5440 Questions and Answers Latest Version Graded A+
What is the process by which plants convert sunlight into chemical energy?✔✔Photosynthesis
Which gas is most abundant in Earth's atmosphere?✔✔Nitrogen
What unit is commonly used to measure electric current?✔✔Ampere
What is the force that pulls objects toward the center of the Earth?✔✔Gravity
What is the smallest unit of life that can carry out all life processes?✔✔Cell
- / 3
2
What is the term for the natural process by which organisms better adapted to their environment tend to survive and reproduce?✔✔Natural selection
What is the name for a substance that cannot be broken down into simpler substances by chemical means?✔✔Element
What part of the cell is responsible for controlling the cell’s activities?✔✔Nucleus
What organelle is known as the powerhouse of the cell?✔✔Mitochondria
What is the term for the movement of water across a semi-permeable membrane?✔✔Osmosis
What is the name of the geological process where two tectonic plates move apart? 2 / 3
3
✔✔Divergence
What type of rock is formed from cooled magma or lava?✔✔Igneous rock
What type of energy is stored in the bonds of chemical compounds?✔✔Chemical energy
What is the process by which water changes from liquid to gas?✔✔Evaporation
What is the term for a trait that helps an organism survive in its environment?✔✔Adaptation
What do you call an animal that eats only plants?✔✔Herbivore
What is the basic unit of heredity?
- / 3