Across
- 1. - The quantitative property that must be transferred to an object in order to perform work.
- 4. - The base unit of electric current in the International System of Units.
- 5. - The specialized plant tissue responsible for transporting water and dissolved minerals upward.
- 6. - A substance that speeds up a chemical reaction without being permanently changed.
- 7. - A substance with a pH below 7 that donates hydrogen ions in a chemical reaction.
- 9. - The skin and fur of an animal, often used in evolutionary adaptations or biology contexts.
- 10. - Any interaction that, when unopposed, will change the motion of an object.
- 11. - Molten rock expelled by a volcano onto the Earth's surface.
- 13. - A high-temperature exothermic chemical reaction between a fuel and an oxidant.
- 14. - A muscular organ that pumps blood through the circulatory system.
- 16. - Organic compounds required in tiny amounts for essential metabolic functions.
Down
- 1. - The green pigment found in plants essential for absorbing light energy during photosynthesis.
- 2. - The natural force of attraction between any two objects with mass.
- 3. - The rate at which an object covers distance (scalar quantity).
- 4. - A solid material that is typically hard, shiny, malleable, and a good electrical conductor.
- 5. - Organisms (like mosquitoes or ticks) that transmit pathogens and diseases between hosts.
- 6. - A semiconductor device that allows current to flow freely in only one direction.
- 7. - The bony skeletal structure protecting the brain.
- 8. - The basic structural, functional, and biological unit of all known living organisms.
- 9. - The central organ of the nervous system responsible for thoughts, memory, and control.
- 10. - The part of a stamen that produces and contains pollen in flowering plants.
- 12. - The net movement of molecules from an area of high concentration to low concentration.
- 13. - A reactive, life-supporting gas essential for aerobic respiration.
- 14. - A contagious viral infection that attacks the respiratory system.
- 15. - The basic building blocks and fundamental units of chemical elements.
- 16. - The tendency of an object to resist any change in its state of rest or motion.
