Experiment
You have a really sour lemonade and want to add sugar. There are two containers that are unlabeled and you know one is sugar and the other is dry detergent. How can you figure out which is which?
Test properties
What is qualitative data?
measurable data
How many protons and neutrons are in carbon?
Protons 6
Neutrons 6
What is a homogeneous mixture? You can give an example.
Shared space equally; coffee, milk, soda
What energy is motion energy?
Kinetic
When an salt water is added to an MRE bag and it begins to boil, what is that an example of?
What is quantitative data
data collected using your senses
How many elements are in C4H10
C-1, H-1, total 2
What does polar mean?
soluble in water
Which energy is affected by height and mass?
Gravitational
If an ice cube melts, is it experiencing and endothermic or exothermic system.
endothermic
Justin wants to determine the effect of fertilizer on the growth of plants.
What is the independent and dependent variables?
I-fertilizer
D-growth
How many atoms of each element are in C4H10
C-4, H-10, total 14
Polar
Which energy deforms and reforms
Elastic
Was the handwarmer endothermic or exothermic?
exothermic
A student investigated whether the height of a person affects how fast they can run.
IV
DV
Height
Speed
Balance the equation
C3H8 + O2 -> H2O + CO2
1543
Is this an element or mixture? (screen)
Mixture
What does energy transfer mean?
object to object
What happens to the mass of a reaction in a closed system? Does is increase, decrease, or stay the same?
Stay the same
What two pieces of data will tell us how much kinetic energy an object has?
mass/speed
Balance the equation
KClO3 -> KCl + O2
223
Is butter polar or nonpolar?
in the catapult experiment, what were all the energy transfers starting from the very beginning and including the bounce off the table. There should be 9...
CE, EE, KE, GE, KE, EE, KE, GE, KE