8th Grade Science Test PDF

### **8th Grade Science Test** **Name:** ___________________________ **Date:** ___________________________ --- ### **Multiple Choice (15 points)** 1. Which of the following is a branch of chemistry? a) Mechanics b) Biochemistry c) Astronomy d) Acoustics 2. What is the definition of matte...

### **8th Grade Science Test** **Name:** ___________________________ **Date:** ___________________________ --- ### **Multiple Choice (15 points)** 1. Which of the following is a branch of chemistry? a) Mechanics b) Biochemistry c) Astronomy d) Acoustics 2. What is the definition of matter? a) Anything that has volume b) Anything that has weight and shape c) Anything that has mass and takes up space d) Anything that can move 3. Which telescope observes infrared light? a) Hubble Space Telescope b) Galileo Telescope c) James Webb Space Telescope d) Kepler Space Telescope 4. What branch of physics studies heat and temperature? a) Quantum Mechanics b) Thermodynamics c) Magnetism d) Acoustics 5. Who studies the geological properties of planets? a) Volcanologist b) Meteorologist c) Planetary Geologist d) Chemical Oceanographer 6. Which of the following is NOT a branch of Earth Science? a) Geology b) Oceanography c) Astronomy d) Acoustics 7. Which type of chemistry focuses on the study of carbon-containing compounds? a) Analytical Chemistry b) Organic Chemistry c) Inorganic Chemistry d) Biochemistry 8. What is the main focus of analytical chemistry? a) The study of chemical reactions b) The composition of substances c) Chemical processes within living organisms d) Properties of gases 9. What is the study of sound and sound waves called? a) Magnetism b) Acoustics c) Optics d) Thermodynamics 10. Which scientist studies atmospheric phenomena? a) Climatologist b) Geologist c) Meteorologist d) Astronomer 11. What is the definition of chemistry? a) The study of heat and temperature b) The study of celestial objects c) The study of matter and its changes d) The study of Earth’s atmosphere 12. A marine biologist studies: a) Ocean currents b) Oceanic life forms c) Chemical properties of the ocean d) Geology of the ocean floor 13. What does "thermodynamics" refer to? a) The study of magnetic fields b) The study of light interactions c) The study of heat and energy transfer d) The study of sound waves 14. Which branch of Earth Science focuses on the study of volcanoes? a) Meteorology  b) Geology c) Astronomy d) Oceanography 15. What type of light does the Hubble Space Telescope primarily observe? a) Infrared b) Ultraviolet and visible light c) Gamma rays d) X-rays --- ### **True or False (15 points)** 16. ___ Chemistry is known as the "central science" because it connects with other sciences. 17. ___ Physical chemistry studies the chemical processes of living organisms. 18. ___ Mechanics is the study of sound waves. 19. ___ Environmental science focuses on solutions to environmental problems. 20. ___ The Hubble Space Telescope was launched in 1990. 21. ___ Quantum mechanics studies subatomic particles. 22. ___ Marine geologists study ocean currents. 23. ___ Inorganic chemistry is the study of compounds that do not contain carbon. 24. ___ Climatology is a branch of meteorology. 25. ___ Magnetism is the study of sound waves. 26. ___ Oceanography is a branch of physics. 27. ___ Analytical chemistry examines the composition of substances. 28. ___ Planetary geology studies volcanoes on Earth. 29. ___ Optics studies light and its interactions. 30. ___ Biochemistry focuses on reactions involving living organisms. --- ### **Fill in the Blank (10 points)** 31. The study of the Earth's atmosphere and weather patterns is called _______________. 32. The study of sound and sound waves is known as _______________. 33. _______________ studies the chemical composition of the ocean. 34. The branch of physics that studies light and its interactions is _______________. 35. _______________ chemistry focuses on the composition of substances. 36. The _______________ is a space telescope that observes visible and ultraviolet light. 37. _______________ physics studies matter at the atomic and subatomic level. 38. _______________ is the study of heat and temperature in physics. 39. Geologists who study minerals are called _______________. 40. The study of planets and their geological properties is called _______________. --- ### **Short Answer (5 points)** 41. Define chemistry and explain why it is referred to as the "central science." --- ## **Answer Key (Separate Page)** ### **Multiple Choice (15 points)** 1. **b)** Biochemistry 2. **c)** Anything that has mass and takes up space 3. **c)** James Webb Space Telescope 4. **b)** Thermodynamics 5. **c)** Planetary Geologist 6. **d)** Acoustics 7. **b)** Organic Chemistry 8. **b)** The composition of substances 9. **b)** Acoustics 10. **c)** Meteorologist 11. **c)** The study of matter and its changes 12. **b)** Oceanic life forms 13. **c)** The study of heat and energy transfer 14. **b)** Geology 15. **b)** Ultraviolet and visible light --- ### **True or False (15 points)** 16. **True** 17. **False** 18. **False** 19. **True** 20. **True** 21. **True** 22. **False** 23. **True** 24. **True** 25. **False** 26. **False** 27. **True** 28. **False** 29. **True** 30. **True** --- ### **Fill in the Blank (10 points)** 31. **Meteorology** 32. **Acoustics** 33. **Chemical Oceanographer** 34. **Optics** 35. **Analytical** 36. **Hubble Space Telescope** 37. **Quantum Mechanics** 38. **Thermodynamics** 39. **Mineralogists** 40. **Planetary Geology** --- ### **Short Answer (5 points)** 41. **Define chemistry and explain why it is referred to as the "central science":** - Chemistry is the scientific study of matter, its properties, how it interacts and combines with other substances, and the changes it undergoes. It is called the "central science" because it connects other sciences like physics and biology. --- Let me know if additional adjustments are needed!