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CSET Subject 2: Science
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CSET Subject 2: Science
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25 Questions

1. Is a homogeneous mixture in which one substance has dissolved into the other - example: salt water

2. A bond in which on atom loses an electron to form a positive ion and the other gains an electron to form a negative ion - creating an electrostatic force which holds them together.

3. 1. egg 2. larvae 3. pupae/crysalis 4. imago/adult butterfly

4. Forms the key building block at an atomic level.

5. Energy in motion

6. Thin - flexible barrier around a cell; regulates what enters and leaves the cell

7. Deoxyribonucleic acid

8. Is the particular wavelength of light we observe that is not absorbed by an object.

9. One member of a symbiotic relationship benefit.

10. The number of protons a particular type of atom has. The atomic number defines the type of element.

11. A change in position

12. Energy changes forms but is not created or destroyed.

13. A group which resembles the experimental group in all other ways - but on which the hypothesis is not tested. In some clinical trials the control group is given a placebo.

14. An object in motion stays in motion along a straight path unless acted upon by a net external force.

15. Cellular division to create sex cells called haploids.

16. Is a system in which small particles are kept dispersed by agitation or molecular motion in the surrounding medium - example: muddy freshwater

17. Pulls apart into two separate cells

18. 1. State the problem. 2. Form a hypothesis. 3. Observe and experiment. 4. Interpret the data. 5. Draw conclusions.

19. Is the process of storing energy through photosynthesis and later releasing it through respiration.

20. Converts energy from food to energy the cell can use

21. Force = Mass X Acceleration

22. A bond formed when atoms share one or more of their valence electrons.

23. Is the measure of the presence of hydrogen ions in a substance.

24. 1. hair 2. warm - blooded 3. live birth 4. nurses their young

25. Can occur by chemical means such as acid rain or physical means - such as wind - rain and ice.