Science Semester I Review How many elements are present in the following compound? Na₃PO₄ Hydrogen Peroxide has the chemical formula H₂O₂. How many total atoms of hydrogen and oxygen are in one molecule of H₂O₂? An element is defined as ________________________________________________________________________ Complete the table below with the correct physical properties. Metal Non-Metal Metalloid Shiny (luster) dull Shiny or dull Poor conductor of heat and Conducts heat and electricity electricity Magnetic Not Magnetic I Density! Density = Mass/Volume ♥ A cube has a volume of 5cmᴣ and a mass of 30 g. What is the density of the cube? A cube has a volume of 12cm3 and a mass of 48g. What is the density of the cube? Volume = length x width x height The sides of a cube measure 2cm. What is the volume of the cube? The sides of a cube measure 4 cm. What is the volume of the cube? You have a cube with sides measuring 2cm and a mass of 32g. What is the density of the cube? Fill in the table with information from each energy source. Nuclear Biomass Geothermal Wind Advantages Inexpensive is free Disadvantages Risk due to Farmland Harmful gases Increases the Affected Terrorist used for and minerals possibility of by changes threat biomass flooding in weather- instead of without crops sun and wind it
Science Semester I Review How many elements are present in the following compound? Na₃PO₄ Hydrogen Peroxide has the chemical formula H₂O₂. How many total atoms of hydrogen and oxygen are in one molecule of H₂O₂? An element is defined as ________________________________________________________________________ Complete the table below with the correct physical properties. Metal Non-Metal Metalloid Shiny (luster) dull Shiny or dull Poor conductor of heat and electricity Conducts heat and electricity Magnetic Not Magnetic I ♥ Density! Density = Mass/Volume A cube has a volume of 5cmᴣ and a mass of 30 g. What is the density of the cube? A cube has a volume of 12cm3 and a mass of 48g. What is the density of the cube? Volume = length x width x height The sides of a cube measure 2cm. What is the volume of the cube? The sides of a cube measure 4 cm. What is the volume of the cube? You have a cube with sides measuring 2cm and a mass of 32g. What is the density of the cube? Fill in the table with information from each energy source. Nuclear Biomass Geothermal Wind Advantages Inexpensive is free Disadvantages Risk due to Terrorist threat Farmland used for biomass instead of crops Harmful gases and minerals Increases the possibility of flooding Affected by changes in weather- without sun and wind it
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