What are the constituent elements of water? how can you break down water into its constituent elements? classify the following into elements and compounds: iron, water, hydrogen, sugar, chlorine, sulphur explain why elements are considered as the basic building blocks of matter. explain the basic structure of the periodic table of elements. list four properties based on which you can distinguish between metals and non-metals. list two metals and two non-metals. give their main uses.

Solve for r in the formula v = ir, when i = 5 and v = 15.

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

Match the term with the corresponding definition. 1. mountains 2. geographic position 3. latitude 4. oceans 5. pressure 6. land vs. water a. affects temperature by influencing the seasonal range of solar intensity b. despite being at similar latitudes, continental locations have a larger seasonal range in temperature than waterfront locations c. local topography predict temperature and precipitation d. thinner air less able to hold heat makes climate colder e. sea surface temperature influences air temperature and evaporation rates f. affects temperature, moisture, and storm tracks