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Chemical or Physical
Name That Element
Scientific Method
"Matter" of Fact
Periodic Table
100
Burning paper is an example of a ______________ change.
What is CHEMICAL change
100
S
What is SULFUR
100
The use of the senses to obtain information is called ___________.
What is OBSERVING
100
The state of matter in which a material has a definite volume and a definite shape is the _______________.
What is SOLID
100
Which is an example of an element? water, soil, oxygen, or sugar
What is OXYGEN
200
What boils at 100 degrees Celsius. This is an example of a _____________ property.
What is PHYSICAL property
200
Ca
What is CALCIUM
200
A testable statement
What is a HYPOTHESIS
200
The smallest unit of an element that has the properties of that element is a(n) _______________.
What is ATOM
200
In the periodic table, elements in the vertical columns together form a(n) _______________.
What is GROUP or FAMILY
300
Melting an ice cube is an example of a ______________ change.
What is PHYSICAL change
300
Au
What is GOLD
300
That variable that remains constant in order to make a comparison is the ________________ variable.
What is CONTROL variable
300
A blend of two or more kinds of matter, each of which retains its own identity and properties, is a(n) _______________.
What is MIXTURE
300
A(n) _______________ is an element that has some characteristics of metals and some characteristics of nonmetals
What is METALLOID
400
Dissolving sugar in water is an example of a ______________ change.
What is PHYSICAL change
400
Pb
What is LEAD
400
Scientists often use THESE to represent complex situations, or objects that are extremely big or small in real life.
What are MODELS
400
Every pure chemical compound consists of two or more _________ that are combined chemically.
What are ELEMENTS
400
Elements are arranged in the periodic table according to their _______________.
What is CHEMICAL PROPERTIES
500
Radon gas decays into radioactive material. This is an example of a ________________ change.
What is CHEMICAL change
500
Hg
What is SILVER
500
THESE emerge from a hypothesis or group of hypotheses that have undergone repeated testing
What are THEORIES
500
Mud is an example of a ______________ mixture (homogeneous or heterogeneous)
What is HETEROGENEOUS
500
As you move left and down on the periodic table of elements, the elements become ______________.
What is MORE METALLIC