Across
- 1. The Earth ______________ on its axis.
- 3. Elements with the same number of protons but different number of neutrons.
- 4. Lightest element on the periodic table
- 5. A group of solar systems
- 9. The force that pulls objects towards each other. It is weaker on the moon.
- 12. Spontaneous disintegration of a parent nuclide into its daughter nuclide.
- 14. A substance that deforms and takes the shape of its container.
- 15. This bone is called the funny bone
- 18. Breakdown of food substances into simpler forms that can be absorbed and used.
- 19. Long-term atmospheric conditions (Humidity, rain, wind......)
- 20. The Earth ___________ around the sun.
- 21. Resistance that one surface object encounters when moving over another.
- 23. Emission of energy in the form of electromagnetic waves.
- 24. What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?
- 25. Process of splitting the nucleus of an atom into two or more smaller nuclei.
Down
- 2. When i am stretched i must return to my original position because I must obey Hooke's law or else I will be deformed.
- 6. It can travel one place to another but it has no mass. It has a speed of 3*10^8
- 7. SI Unit of mass
- 8. You can find it in the sea, in hair and sound.
- 10. A substance that stimulates the body's immune system to produce immunity to a specific disease.
- 11. Spreading out of particles out evenly in a given space.
- 13. The force exerted by a fluid on an object immersed in it.
- 16. The process of an object changing its position. (starts with M and rhymes with ocean).
- 17. It is alive, it grows, with no lungs but needs air.
- 22. Diamond is made from _______________ atoms. Graphite is also made from it too.