Go to the Quizzes Page Grade 6 Science Diagnostic Exam 0% 274 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 What is the main function of the heart in the human body? To produce hormones To pump blood throughout the body To break down food To filter waste from the blood 2 / 20 What is the role of a decomposer in a food web? To eat other animals To break down dead organisms and waste To produce its own food To eat plants 3 / 20 What is the basic unit of all living organisms? The Cell The Atom The Organ The Tissue 4 / 20 Which of the following is a producer in a food chain? A cactus A snake A rabbit A lion 5 / 20 A substance that dissolves in another substance to form a solution is called the: Mixture Solvent Solution Solute 6 / 20 Which of these objects would have the most gravitational force acting on it? A paperclip A soccer ball A feather A bowling ball 7 / 20 What is the name of the system in the human body that allows us to breathe? The Respiratory System The Nervous System The Muscular System The Skeletal System 8 / 20 Which of the following is a renewable energy source? Natural gas Oil Coal Solar power 9 / 20 The force that pulls all objects towards the center of the Earth is called: Magnetism Friction Air resistance Gravity 10 / 20 What is the function of the stomach in the digestive system? To pump blood To chew food To absorb water and minerals To break down food using acid and enzymes 11 / 20 What is the name of the path the Earth follows as it moves around the Sun? Orbit Equator Revolution Axis 12 / 20 What is the main difference between a mixture and a compound? A mixture's components are chemically bonded, while a compound's are not. A mixture has a fixed ratio of components, while a compound does not. A mixture can be separated by physical means, while a compound requires chemical means. A mixture can only be made of two substances, while a compound can be made of many. 13 / 20 Why does the Earth experience day and night? Because the Sun rises and sets Because the Earth rotates on its axis Because the Earth revolves around the Sun Because the Moon orbits the Earth 14 / 20 What happens to the particles of a substance when it changes from a solid to a liquid? The particles get closer together. The particles stop moving. The particles lose energy. The particles gain energy and move more freely. 15 / 20 The main source of energy for most ecosystems on Earth is: Volcanoes Water Wind The Sun 16 / 20 Which of the following is an example of a chemical change? Water boiling Cutting wood Ice melting Paper burning 17 / 20 Which of the following parts of a plant is responsible for absorbing water and nutrients from the soil? The leaves The flowers The stem The roots 18 / 20 Which of the following is the largest planet in our solar system? Mars Earth Saturn Jupiter 19 / 20 When you shine a flashlight on a wall, what is the path of the light called? A wave A beam A ray A shadow 20 / 20 What is the process called when a liquid changes to a gas? Condensation Evaporation Freezing Melting Your score is 0% Restart quiz See review Send feedback Go to the Quizzes Page