What is in the nucleus of an atom ( when you draw the bohr model)
protons & neutrons
100
The sharing of electrons makes this type of bond ( sharing is caring )
covalent bond
100
Water loving
hydrophillic
100
All living things are composed of……the smallest unit that can carry on all functions of life…..
cells
100
Convert 200mm into meter
0.200m
200
How many electrons are needed in the outermost energy level to be stable?
8
200
Electrons have this charge ?
Protons have this charge ?
negative & positive
200
Water sticks to water with this property
cohesion
200
Which of these is not a living thing ? Why ?
water, crocodile, tree, mushroom
water
200
What type of measurement do we NOT use in the metric system ?
meters, liter, grams, or pounds
pounds
300
Anything that is on the left side of the yield sign -----> in an equation (remember making a cake, another word for ingredients?)
reactant
300
How many valence electrons does Sulfur have?
6
300
Water is this type of molecule because it has a partial + charge and a partial - charge
polar
300
The process of making cells functions Different from each other…a liver cell, a brain cell….
Differentiation
300
Barbara was walking along the pond in 80th park, and noticed there was no fish in the pond. What part of the scientific method is this
observation
400
Energy needed to start a reaction is called _______ energy
activation energy
400
Sodium chloride (NaCl) has this type of bond, cause a + or - charge
Ionic Bond
400
In a solution, water is called the _______ & the powder or thing being dissolved is called the ______ ?
solvent & solute
400
Large organic molecule containing the hereditary information for an organism,passed on to you from your parents
DNA
400
In a controlled experiment, we need to have 2 different groups. What are those 2 groups ?
control and experimental group
500
The pH scale ranges from what # to what #?
And if a substance has a pH of 4 it is considered a ____?
0 to 14 and acid
500
Chemicals substances that help neutralize acids or bases when added to a solution (jellyfish and urine)
buffer
500
These take the longest to break when water is heated…so many of them of these bonds hold water together
hydrogen bond
500
If Alex has a 104 degree fever, she has to be taken to the hospital to lower her fever because it is important for her body to maintain stable internal conditions, which is called
homeostasis
500
If you wanted to measure the distance from here to New York City, you would use