True or false: Cutting is an example of a physical change
True
100
name two examples of chemical changes
car rusting, baking bread metal tarnishing, glow sticks, ect ect
100
is cardboard folding into a box an example of a chemical change?
no
100
madie mixes 20 grams of salt into 85 grams of warm water, what is the mass of the solution?
105 grams
100
which two teams are in the super bowl?
Carolina panthers, and the Denver broncos
200
what are the different states of matter?
liquid solid gas
200
oxygen is an example of an _____________ and water is an example of a ___________
element, compound
200
what is the smallest particles of matter?
atoms
200
why does a 1/2 pound stone sink while a 5 pound stick floats
the stone sinks because it is MORE dense than the water
200
you know dasher dancer prance vixen comet cupid donner and blitzen. Their is also Rudolph, but who is the 10th deer?
olive
300
true or false water boiling is an example of a physical change
true
300
what is the law of conservation of mass?
mass of a substance you create will always equal the mass of the substances you added together.
300
if I have a scale that is too small to measure an object what can I do to get the true weight of the object?
break up the object into smaller pieces
300
in a physical change can their be color change? Why?
yes their can but it must be an expected color change
300
what year was batman created?
What is 1939
400
what temperature does water freeze, and boil?
32,212,0,100
400
what two substances react to form rust?
iron and oxygen
400
true or false: change in volume is an example of a chemical change?
false
400
Jordan has a model cell, made of three pieces, that has a mass of 95 grams. the nucleus weighs 20 grams and the membrane weighs 35 grams. what does the third piece of the model weigh?
40 grams
400
who is better? marvel or dc
DC of course duh?
500
what is a mixture, and what is an example of a mixture
two or more substances that do not change when you put them together?
500
what is a compound?
substance made up of two or more elements
500
tell me one example of a mixture, one example of a physical change, and one example of a chemical change
lists may very
500
What do hydrogen and oxygen gas react to form? What kind of change is this?