Science Vocab #1

2. Starting materials in a chemical reaction.
4. The overall force acting on an object when all individual forces are combined.
5. Waves: Waves that carry energy through space or a medium, involving electric and magnetic fields (e.g., light, radio waves).
6. Level: The smallest scale of a substance where particles like atoms and molecules can be studied.
8. The quantity of motion an object has, calculated as mass × velocity.
9. Heat: The heat energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius.
13. Signals: Signals using 1s and 0s (binary) to represent information.
14. of Conservation of Matter: Matter cannot be created or destroyed, only rearranged.
17. Expansion: The increase in a material's size as it warms due to particle movement.
19. of Mass: The principle stating that mass is neither created nor destroyed in a closed system.
21. Optic Cable: Thin glass or plastic fibers that transmit data as light pulses.
22. Patterns: A coding system using only 1s and 0s, the language of computers.
27. Energy: Stored energy due to an object’s position or condition (e.g., a stretched spring).
29. Force: A force that keeps an object moving in a circular path, directed toward the circle’s center.
30. Numbers in a chemical equation indicating the amounts of molecules or atoms.

1. An object's resistance to changes in motion, depending on its mass.
3. Reaction: A process where reactants change to form new products.
7. Equations: Symbols representing a chemical reaction, showing reactants, products, and their quantities.
10. Heat or electricity transfer through direct contact in solids.
11. Substances formed in a chemical reaction.
12. The distance between two consecutive wave crests or troughs.
15. Force: The force of attraction between two objects with mass (e.g., Earth pulling objects toward its center).
16. Heat transfer in fluids (liquids or gases) caused by the movement of warmer and cooler fluid parts.
18. Energy transfer through space as electromagnetic waves (e.g., sunlight, heat from a fire).
20. Energy: The total energy of all moving particles in a substance, depending on temperature and the number of particles.
23. Waves: Waves that bend when passing through different materials, changing speed.
24. Energy: Energy due to an object’s motion.
25. The height of a wave from its rest position to its crest or trough, indicating energy level.
26. Third Law of Motion: For every action, there is an equal and opposite reaction.
28. Signals: Continuously varying signals, like a smooth sound wave.