What is all of the living populations in an area along with the nonliving parts of that environment?
100
Mass/Volume
What is density?
100
You are examining an object in science class. It is solid, conducts electricity, and is a shiny brownish-orange color. The sample is most likely a…….
What is a metal?
100
Air
What is a combination of elements and compounds?
100
When water changes from a liquid to a gas and then the steam condenses back to the liquid form this these types of changes are ...
What is a physical change?
200
oxygen, rocks, soil and water
What are abiotic factors?
200
triple beam balance
What is the equipment used to find the mass of an object?
200
You are examining an object in science class. It is a pale yellow, brittle solid, with no shine. The sample is most likely a……
What is a nonmetal?
200
C6H12O6- three?
How many elements are present?
200
This type of change takes place when you leave a hammer outside and it rusts
What is a chemical change?
300
Bacteria, insects, small mammals, fish
What are biotic factors?
300
Materials made of the SAME substance will have characteristics in common. This will most likely remain constant in different samples of the SAME material.
What is density?
300
Elements present in C6H12O6
What is carbon, hydrogen, oxygen?
300
LiBr
KOH
Fe
NH3
One is ___________
What is an element?
300
Change in temperature
Production of a gas
Change in color
Production of a precipitate
What are signs of a chemical change?
400
all living and nonliving factors
What are components of an ecosystem?
400
There are 3 blocks made of different substances. They are the same size. The same length, width and height. The blocks are ...
What is same volume, different mass, and different density?
400
In giving the symbol of any element, the first letter is ALWAYS CAPITAL and the second letter is always lowercase
What is the correct way to write an element's symbol?
400
The ratio of hydrogen atoms to oxygen atoms is 2 to 1 in this compound
What is water?
400
Milk sours, burning wood, rusting of metal
What are chemical changes?
500
Populations interacting in a community
What are deer, squirrels, grass, hawk, trees?
500
Calculate the density of an object with a mass of 54g and a volume of 120 cm3
What is .45g/cm3 ?
500
Luster, ductility, conductivity are examples of
What are physical properties of metals, nonmetals and metalloids?
500
An unknown substance has a mass of 23g and a volume of 25ml
What is .92 g/ml?
500
observed when a potato is put in hydrogen peroxide