Home > B1 Vocabulary 0% Basic Scientific Principles and Concepts 1. The ______ is the outermost layer of the Earth. asthenosphere mantle core crust 2. The ______ is the scientific study of matter and its interactions. physics biology chemistry geology 3. A ______ is a small unit of life that is the basic building block of all living organisms. organism atom molecule cell 4. The ______ is the force that attracts objects toward the center of the Earth. inertia gravity friction magnetism 5. A ______ is a substance that speeds up a chemical reaction without being consumed. product reactant solvent catalyst 6. A ______ is a natural satellite that orbits a planet. moon comet star asteroid 7. A ______ is a type of cell division that results in two identical daughter cells. fusion fission mitosis meiosis 8. A ______ is a form of energy transfer that occurs through electromagnetic waves. radiation conduction refraction convection 9. A ______ is a scientific instrument used to observe distant celestial objects. microscope telescope spectrometer barometer 10. The ______ is a unit of measurement for energy. joule liter meter second 11. The ______ is a measure of the amount of matter in an object. mass weight density volume 12. The ______ is the name of the galaxy that contains our solar system. Triangulum Whirlpool Milky Way Andromeda 13. A ______ is a type of energy associated with motion. chemical kinetic potential thermal 14. The ______ is the process by which plants make their own food using sunlight. digestion fermentation photosynthesis respiration 15. The ______ is the layer of gases surrounding the Earth. core atmosphere crust mantle 16. A ______ is a group of similar organisms that can reproduce and produce fertile offspring. family species order genus 17. The ______ is the organ in the body responsible for pumping blood. liver lungs heart stomach 18. A ______ is a type of rock formed from the cooling and solidification of magma or lava. sedimentary igneous volcanic metamorphic Your score is The average score is 0% 0% Restart quiz