Across
- 2. the gradual buildup of a chemical or toxin inside the body of a single living organism over its lifetime.
- 5. The amount of force applied per unit of area on a surface.
- 7. A single power source that converts chemical energy into electrical energy to push current through a circuit.
- 9. The simple sugar that reacts with oxygen during cellular respiration to release energy for the body.
- 10. The process where particles on the move naturally spread out from an area of high concentration to low concentration.
- 11. A type of circuit that contains branches, giving the electrical current more than one path to follow.
- 14. The final visual pattern of separated colored bands on paper after a chromatography experiment is finished.
- 16. The primary tube or "windpipe" that connects the larynx to the bronchi, allowing air to pass into the lungs.
- 20. A complete, unbroken path through which an electric current can flow.
- 21. A highly conductive metal widely used to make the inside of electrical wires.
- 22. A component designed to reduce or limit the flow of electrical current in a circuit.
- 24. A measure of how much of a substance can dissolve in a given volume of a liquid at a specific temperature.
- 26. The measure of how fast an object is moving, calculated as distance divided by time.
Down
- 1. Two or more substances held together physically but not chemically, which can be separated by methods like chromatography.
- 3. The tiny air sacs in the lungs where gas exchange (oxygen and carbon dioxide) takes place with the blood.
- 4. The smallest type of blood vessel where nutrients and gases are exchanged between the blood and body cells.
- 6. A material, such as plastic or rubber, that does not allow electricity to flow through it easily.
- 8. A community of living organisms interacting together with the non-living parts of their environment.
- 12. The substance that gets dissolved by a solvent to form a solution (e.g., salt or sugar).
- 13. The specific natural environment or home where an organism lives, feeds, and reproduces.
- 14. A material, such as copper or aluminum, that allows electrical current to flow through it easily.
- 15. The liquid part of the blood that carries dissolved nutrients, waste products, and hormones.
- 17. A device used to measure the flow of electrical current in a circuit.
- 18. The two main tubes that branch off from the windpipe (trachea) to direct air into each lung.
- 19. The continuous flow of electric charge through a circuit.
- 23. The liquid substance capable of dissolving other materials (water is often called the universal one).
- 25. A non-native "intruder" species that spreads rapidly and causes harm to an established ecosystem.
- 26. A component used to safely turn a circuit on or off by opening or closing a gap in the loop.