Praxis Science 7814 Questions and Answers Latest Version Graded A+

Praxis Science 7814 Questions and Answers Latest Version Graded A+ What gas do animals breathe in that is necessary for survival? Oxygen What part of the plant is responsible for absorbing water from the soil? Roots What force pulls objects toward the center of the Earth? Gravity What do we call the change of state from liquid to gas? Evaporation Which planet is known as the Red Planet? Mars 2 What is the center of an atom called? Nucleus What tool would you use to measure the mass of an object? Balance scale Why do we wear sunscreen when we go outside? To protect our skin from UV rays What is the largest organ in the human body? Skin What do bees collect from flowers to make honey? Nectar Which body system is responsible for transporting blood throughout the body? Circulatory system 3 What is the process by which liquid water turns into ice? Freezing How many legs does an insect typically have? Six What type of energy is stored in food? Chemical energy What happens during a lunar eclipse? The Earth blocks sunlight from reaching the Moon What is the role of the lungs in the human body? To exchange oxygen and carbon dioxide Which organelle is known as the powerhouse of the cell? Mitochondria 4 What do we call animals that eat only plants? Herbivores What is the solid form of water called? Ice How many planets are in our solar system?