Science Flashcards
Baking soda, road salt, and water
These were a chemical reaction because they are both soluble in water but when mixed together they inflated the bag and made it warm
Magnesium burn
The magnesium was lit on fire fire cannot exist without oxygen. This oxidized the magnesium and formed magnesium oxide. There was a clear a color change from solid gray to soft white
Copper square surrounded by vinegar
A green solid formed on the copper when the time was given similar to the Statue of Liberty. The vinegar gas was trapped inside the cup
Electrolysis 
Electricity is breaking apart the water molecules. The two test tubes collected gases. The one with more gas collected hydrogen and the one with less collected oxygen
Making soap
Students should identify that combining fat rubbing alcohol and sodium hydrogen hydroxide made a new substance soap
Copper chloride
The aluminum foil dissolved in the copper chloride there was a color change in the temperature change
True or false is kool aid being heated a chemical reaction
False because because it’s just a phase change
What is a product
A product is a substance on the right side of a Chemical formula these are the results of a chemical reaction
What is a reactant
A reactant is a substance on the left side of the chemical formula these are what is there before a chemical reaction occurs
Make a claim on why copper square and vinegar is a chemical reaction.
The cat the square and vinegar lab is a chemical reaction because A solid had formed on the copper square
The claim must be one sentence and has to be testable
No new elements appear in chemical equation
There must be a equal amount on both side
Scientific principle number one
Properties are unique characteristics that help identify a substance and distinguish one substance from another
Scientific principle two
A substance is made of only one type of material (atoms or molecules) all the way through
Scientific principle number three
A mixture is made of more than one substance or more than one type of atom or molecule
Scientific principle number four
Solubility is the capacity of one substance to dissolve in another substance
Scientific principle number five
Hardness and melting point are both properties of substances. Melting point is the temperature at which a solid substance starts to become a liquid
Scientific principle number six
Properties of a given substance are the same regardless of the amount of substance
Scientific principle number seven
Density is the mass in a set volume of a substance. It is calculated mathematically by determining the ratio of the mass of a sample to the volume it occupies.
Scientific principle 12
A chemical reaction is the process of one substance breaking down or two or more substances interacting in their atoms combine in new ways to form new substances with different properties from the old substances
What are chemical reactions
They are any time that you have bonds being formed or broken between atoms or molecules.
Why is energy an important thing
Energy you apply to the system- the more that they’re going to bounce around, the more that they’re going to interact with each other, the more reactants you put in, the more chance that they’re going to bounce around and be able to react with each other
Water
Could be a molecule or compound
Compound
Made of two or more elements
