Science: Chemistry 科学：化学
 
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1 : The place where scientists carry out their experiments is called a ________.
test tube
laboratory
beaker
flask
 People carring out an experiment
 
2 : When two or more substances change each other ________ is said to have taken place.
a reaction
an atom
a compound
a solvent
 Particles
 
3 : ________ of water contains hydrogen and oxygen.
An acid
An alloy
A Bunsen burner
A molecule
 A substances make up
 
4 : A ________ is a liquid containing a dissolved solid.
solution
catalyst
gas
particle
 A person pouring a liquid
 
5 : The periodic table contains all of the ________.
formulas
liquids
elements
solids
 The periodic table
 
6 : The process of burning can be known as ________.
distillation
stirring
saturation
combustion
 Flames