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What is the effect of closing stomata in photosynthesis of plants?
decrease in photosynthesis
How can you tell if plant lacks magnesium?
Yellowing between the leaf veins, sometimes with reddish brown tints and early leaf fall.
How does carbon become stored in fossil fuels?
slow geologic processes traps carbon and transformed it into natural resources (fossil fuels)
Describe at least two predicted impacts of climate change.
rising temperatures, sea level rise, drought, flooding, and etc.
What are the two subatomic particles found in the nucleus of an atom?
proton and neutron
What is the word equation for photosynthesis?
carbon dioxide + water + sunlight -> oxygen + glucose.
What do you call the subatomic particle found in the shells?
electrons
How will you know what is the element if you are only given the information about its number of electrons?
Neutral elements have the same number of protons and electrons, protons will tell you the atomic number of the element.
How will you know the group number of the element based on its structure?
The valence electron (outermost electrons) will tell you the group number.
d = m/v
g/cm3
How can you tell if there is chlorophyll in a plant leaf using iodine solution?
The parts that have chlorophyll will become blue/black with iodine solution.
What are the two types of bond?
Ionic and covalent bonds
ionic is for metal - non metal combination of element while covalent is for nonmetal - nonmetal combination of element
Explain why ice floats in water.
frozen water molecules form a crystal, they take up more space and have a lower density than regular liquid water
How does thermal energy move between ice cube and warm water?
The heat from the warm water moves into the cold ice cube.
What is the method of heat transfer in liquids and gases?
convection
Why do ships float despite being made of mostly metals?
Due to the presence of a lot of air in it, the average density of the ship becomes less than the density of water.