Vocab 1
What is the name of the chart scientists use to classify all of the elements?
Periodic Table of elements
What element has the symbol "C"?
Carbon
Cutting, bending, breaking, warming, cooling, melting, mixing, crushing, folding, and freezing are ways to cause what type of change?
Physical
What is defined as a combination of two or more substances?
Mixture
What are the three states of matter that are commonly found on earth?
solid, liquid, and gas
What is the smallest particle of matter that still acts like that matter?
atom
What element has the symbol "H"?
Hydrogen
Changing color, different odor, bubbles forming, giving of gases, or forming new solids are signs that this type of change has taken place?
Chemical
What is the name for a combination that is created by having one substance dissolve evenly into another substance?
Solution
Water displacement and multiplying length, width, and height is a way to find out this property of matter?
volume
What is matter that is made up of only one kind of atom called?
element
What molecule has the formula H20?
water
A tomato on the plant is changing from green to red, what type of change is this?
Chemical
Sugar and water, salt and water, lemonade, and Kool-Aid are examples of what?
Solution
True or False: the mass of an object is equal to the mass of its parts.
True
What is the center part of an atom called? It contains all of the atom's protons and neutrons.
nucleus
What element has the symbol "Ag"?
silver
The lake's water freezes to ice in the winter, what type of change is this?
Physical
Picking items out, letting things float to the top, and using filters are a way to separate solutions or mixtures?
Mixtures
True or False: In a mixture the substances are permanently combined.
false...they can be separated again
A tiny particle made up of two or more atoms joined together is called....
molecule
What element has the symbol "Na""
Sodium
Which of these is a physical change?
combustion, reactivity, recycling, or corrosion
recycling
Boiling or letting water evaporate is a way to separate solutions or mixtures?
Solutiuons
Which process could change the mass of a iron pole?
bending, freezing, rusting, or melting
Rusting will add a little mass because a new substance has formed with new properties.