Sun, Moon, & Earth?
This is how long it takes Earth to complete one full revolution around the Sun.
365.25 days (1 year)
This is the name of the phase where the moon looks lit up.
Full Moon
These are the 3 states of matter.
Solid, Liquid, & Gas
If a solid cube is placed in water and sinks to the bottom, you can conclude this about its density.
Its density is greater than water (1.0 g/cm³).
If something is set on fire, it would be considered this type of change.
Chemical Change
This is the primary cause of Earth's seasonal changes (the seasons).
Earth's tilted axis as it revolves around the Sun.
This is why the Moon goes through different phases as seen from Earth.
We see different amounts of the illuminated half as the Moon orbits Earth.
The smallest fundamental unit of an element that retains its chemical properties is this.
Atom
This is the formula used to calculate density.
Density = Mass / Volume (D=M/V) *Think of the DMV!*
This is the law that states "mass is neither created nor destroyed during physical & chemical changes, it always remains constant."
Law of Conservation of Mass
When the Northern Hemisphere is tilted towards the Sun, this season is experienced there.
Summer (Winter in the Southern Hemisphere)
This is the phase where the moon looks completely dark.
New Moon
These are the charges that protons & electrons carry (2 subatomic particles).
Proton = Positive (+)
Electron = Negative (-)
BONUS: Neutron = Neutral
This tool is used to measure how basic or acidic a liquid is.
pH Scale
Neutral = 7 - Pure Water
Acid = Less than 7 (1-6) - ex: Lemon juice & Vinegar
Base = More than 7 (8-14) - ex: Soap & Bleach
Sarah drops a raw egg onto the floor, and it breaks open. Later, she bakes a cake using another egg, flour, and sugar. These statements correctly identify what change is happening for each step.
Egg breaks: Physical Change
Baking the cake: Chemical Change
This is the order of the Sun, Moon, & Earth during solar & lunar eclipses.
SOLAR: Moon is between Earth & Sun (Solar SME)
LUNAR: Earth is between the Sun & Moon (Lunar SEM)
When more than half of the moon is lit up, this is the phase we call it.
Gibbous
BONUS: A crescent moon looks like a finger nail!
These subatomic particles are located inside the nucleus of an atom.
Protons and Neutrons
BONUS: Electrons are in the electron cloud surrounding the nucleus
These are 2 examples of each; two physical properties and two chemical properties.
Physical: Color, smell, texture, boiling/melting points, density, malleability, conductivity, solubility, etc.
Chemical: Flammability, Corrosiveness (rusting), reactivity, toxicity, etc.
SOLUBILITY = Can it dissolve? (ex.: Salt Water)
Solvent = What it dissolves in (ex: Water)
Solute = What is dissolving (ex: Salt)
This is the main difference between weight and mass.
Mass = does not include gravity and will always stay the same
Weight = Mass + gravity
This causes ocean tides on Earth.
BONUS: These are the two types of tides.
Gravitational pull of the Moon and Sun.
NEAP TIDE = Sun, Moon, & Earth form a 90o Angle! (Neap, 90) Not too high, Not too low
SPRING TIDE = Sun, Moon, & Earth are in a Straight Line (Spring = Super) High highs & low lows
This is the difference between waxing & waning moon phases.
Waxing = Growing (Right side is lit up like the 1st letter in Relaxing)
Waning = Getting Smaller (Left side is lit up, right side is dark)
This is how particles move in solids, liquids, & Gases.
Solids: particles are tightly packed together and vibrating in fixed positions
Liquids: particles slide past one another while maintaining a fixed volume
Gases: particles move rapidly and spread out to fill their container completely
This is the main difference between physical and chemical properties.
Physical: A characteristic you can observe or measure without changing the chemical composition of the substance.
Chemical: It describes a substance's ability to undergo a chemical reaction and transform into a completely different substance.
This is how temperature influences chemical changes.
Raising the temperature increases the rate of a chemical reaction. (And higher temps make molecules move faster!)
Lowering a temperature slows down a chemical reaction.