Science 2

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Created by
Kishan J.

Cards (68)

  • Quantitative Observations include Density, Freezing, Boiling, Melting Point, and temperature
  • Qualitative observations are the properties that can be observed without measuring them.
  • GRASS, stands for Given, Required, Analysis, Solution, and Statement
  • Protons and Neutrons are located inside the nucleus
  • Isotopes have the same atomic number but different atomic mass
  • Atomic Notation puts the atomic mass in the top left corner and atomic number in the bottom left
  • The Periodic Table is organized by increasing atomic numbers
  • The number of shells in an atom depends on the period on the periodic table.
  • If there are 8 electrons in the outer shell of an atom it is stable.
  • The order to draw electrons is Top, Bottom, Right, Left, then Pair Clockwise
  • Cations are positive ions
  • Anions are negative ions
  • Current is the rate of electron flow past a given point in a circuit.
  • Current (I) is measured in amperes (A), using and ammeter
  • Charge (Q) is measured in coulombs (C)
  • Time is measured in seconds (s)
  • Electrical energy = power x time
  • The formula for current is I=I =Q/t Q/t
  • The force that pushes electrons in a circuit is voltage.
  • Voltage is measured in volts (V)
  • Resistance is measured in ohms (Ω).
  • Voltage = Potential Difference
  • The formula for potential difference is V=V =E/Q E/Q
  • Energy (E) is measured in Joules (J)
  • Resistance (R) is the ability of a material to oppose the flow of electric current
  • An ohmmeter is used to measure resistance
  • A voltmeter measures voltage or potential difference
  • The 4 factors that affect resistance are The type of material, Temperature, Length, and Thickness
  • Insulators have high resistances as they do not let electricity pass through them very well.
  • Conductors have low resistances because they allow electrons to move easily through them.
  • The formula for potential difference according to ohms law is V=V =IR IR
  • A cell has a voltage of 1.5 V
  • Optimal range is when a population is at its maximum size and is not overpopulated.
  • Carrying Capacity is the maximum population size that an ecosystem can sustain.
  • Population size (N) is the number of individuals within a specific area.
  • Population Density (Dp) is the number of individuals per unit of volume/area.
  • The main biomes in Canada include the tundra, grasslands, boreal forests, and temperate deciduous forests.
  • The three aquatic ecosystems are Marine, Fresh water, and Intertidal Ecosystems.
  • Ionic Compounds are metals plus non-metals
  • Molecular Compounds are non-metals plus non-metals