Across
- 7. a molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer.
- 9. the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets. The planets of the solar system are (in order of distance from the sun) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
- 11. a small dromaeosaurid dinosaur of the late Cretaceous period.
- 15. a homogeneous mixture through which two or more substances are uniformly dispersed
Down
- 1. a system of measurement that expresses how acidic or basic a substance is
- 2. relating to or denoting the second period of the Mesozoic era, between the Triassic and Cretaceous periods.
- 3. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
- 4. facts and statistics collected together for reference or analysis.
- 5. any compound that increases the number of hydronium ions when dissolved in water
- 6. any compound that increases the number of hydroxide ions when dissolved in water
- 8. a combo of 20 or more substances that are physically combined
- 10. The smallest particle of a substance that has all of the physical and chemical properties of that substance.
- 12. relating to or denoting the last period of the Mesozoic era, between the Jurassic and Tertiary periods.
- 13. a pterosaur of the late Jurassic period, with a long slender head and neck and a very short tail.
- 14. the branch of science that deals with celestial objects, space, and the physical universe as a whole.