This is a pure substance that cannot be broken down....
What is an element?
100
If an object has a mass of 45g and a volume of 9mL, its density is....
What is 5g/mL?
100
If Heather wanted to build a pool with a length of 10cm, a width of 5cm and a height of 12cm, its volume would be....
What is 600 cubic meters?
100
The piece of metal Joann found on the beach was very shiny, so it had....
What is luster?
100
Cutting grass is an example of
What is a physical change?
200
What does not belong in this sequence.... why....
NaCl, CO2, NaF, and O
What is O, because it is an element and the rest are compounds?
200
If an object has a mass of 125g and a volume of 20cm3....its density is...
What is 6.25g/cm3?
200
Mother had a lunch box that measured 5inx5inx10in, its volume is....
What is 250 inches cubed?
200
Stephanie boiled water in the copper pot because it has....
What is conductivity?
200
Burning wood at a bon fire is an example of a...
What is chemical change?
300
If I use the process of hydro electrolysis (a chemical process) to break down water, then water is an example of a....
What is a compound?
300
If an object had a mass of 632g and a volume of 12ml...then its density is _______ and it will ______ if put in water....
What is 52.66g/mL, sink?
300
Lola was designing a new swiming pool for her neighborhood, she measured the volume of the pool to be 125,000 feet cubed....what is the length, width, and height...(remember a cube has the same lengths on all sides)
What is 50ft each side?
300
The jewelry had no luster and were very easy to break, so it was.....
What is dull and brittle?
300
When two or more substances react or mix to create a whole new substance, with new properties...What is taking place?
What is a chemical change?
400
The periodic table has over ______ elements and was made by________......
What is over 118 elements and Demetri Mendelev?
400
If an object has a mass of 133g and a volume of 11mL, its density is _________ and it will ________....
What is 12.09g/mL, sink?
400
The pond in the back yard is 50ft long, 20ft wide and 3ft deep....its volume is
What is 3000 ft. cubed?
400
This is normally shiny, solid at room temperature, ductile, malleable, has a high melting point, and is a good conductor of heat and electricity....
What is a metal?
400
Boiling, Melting, and Freezing points only identify this....
What is a physical change?
500
Where can I find Silicon on the periodic table.....(hint it is a metalloid).
What is the right side?
500
If an object has a mass of .4g and a volume of 12mL, its density is ___________ and it will _________....
What is 0.03g/mL, float>
500
Calculate the volume of the following object...
25in long, 50in wide, and 200 in high....
What is 250,000 in cubed?
500
Most of these are gases, are semiconductors, can be shiny or dull...
What is a metalloid?
500
When mixing baking soda and vinegar, I am able to notices bubbles and fizzing...so I am recognizing....