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scientific method
measurement
states of matter
atomic history
atomic structure
100
list the steps to the scientific method in the correct order.
What is 1. state a problem/make an observation 2.research 3. hypothesis 4. test/gather data 5. conclusion
100
the definition of mass. the definition of volume.
What is the amount of matter in an object? and the amount of space an object takes up?
100
name the 4 states of matter
What is solid, liquid, gas and plasma?
100
this was the first person to say that all objects were made of tiny particles called atomos
What is democritus?
100
name the 3 parts of an atom.
What is proton, neutron and electron?
200
if i use candy for the labs, then the students will pay more attention. this is the independent variable.
What is use candy for the labs
200
the definition of density.
What is mass per unit volume or how tightly packed the molecules of an object are?
200
this has a definite volume and shape.
What is a solid?
200
this scientist called his model of that atom the plum pudding model because of the electrons surrounding a positive center.
What is jj thomson?
200
the densest part of the atom.
What is the nucleus?
300
mr. ely decides to see if using colored paper for his homework assignments will help the students remember to complete them and turn them in. this is the dependent variable.
What is help the students remember to complete the assignments and turn them in?
300
name the units of measurement and the tools used to make the following measurements: mass, volume of a liquid, volume of a solid, and length
What is mass=grams and balance; volume of liquid=L or mL and graduated cylinder; volume of a solid=cubic cm and metric ruler; length=m and metric ruler
300
an example of this type of matter is lightning.
What is plasma?
300
this scientist figured out that the atom was made of mostly empty space by performing the "gold foil" experiment.
What is ernest rutherford?
300
the charges of the 3 parts of the atom.
What is proton=positive, neutron=neutral, electron=negative?
400
a student wants to see if adding fertilizer to his tomato plants will help the plants produce more tomatoes. he has 4 of the same plants in the same size pots, with the same type of soil and gives them the same amount of water. one plant gets no fertilizer, while the other 3 plants get different amounts of fertilizer. this is the control.
What is the plant with no fertilizer?
400
a rock is placed in a graduated cylinder that has 10 mL of water in it. the water rises to 23 mL. this is the volume of the rock.
What is 13 mL?
400
this is what happens to energy and temperature as you move from a solid to a liquid to a gas
What is increase?
400
this scientist's model of the atom has the electrons orbiting around the nucleus in fixed orbits.
What is neils bohr?
400
this is where the electrons are found.
What is the electron cloud?
500
mr. ely wants to see if giving his students study guides will help them get better scores on their test. he gives his 1st and 2nd period classes study guides while his 5th and 6th period classes do not get any study guides. mr ely does this for 2 tests for each class. what can mr. ely do to make this a better experiment?
What is only perform the experiment on one class for both tests.
500
1 m = _____ km 23.4 g = _____ mg 7 km = _____ m 74.1 cm = _____ mm
What is .001 km 23400 mg 7000 m 741 mm
500
this is why energy and temperature increase when you move from solid to liquid to gas.
What is the molecules of the substance move faster?
500
name the 3 parts of john dalton's atomic theory.
What is 1. all elements are made of atoms 2. atoms of an element all look the same 3. atoms of different elements bonded together make a compound?
500
this is why the nucleus has most of the mass.
What is because the protons and neutrons are found in the nucleus?