SCIENCE 1.1-1.4 QUETIONS Flashcards
the two categories substances can be classified into
elements and compounds
Name what the 3 particles in an atom are and also what are the two regions?
proton,neutron,and electron
nucleus, electron cloud
give me five examples of a physical property
conductivity,viscosity,density,hardness,malleability
T/F Some but not all physical changes can be reversed
True
the three ways to recognize chemical change
- change in color
- Formation of precipitate
- Production of a gas
How do you identify elements
They are identified by specific physical and chemical properties.
Why can the properties of a mixture vary? Explain
They can vary because the composition of a mixture is not fixed
Give two examples of a suspension,solutions,and Colloids
Suspension Italian dressing, Medicine like Amoxicillin
Solution Milk and Deodorant spray
Colloids Kool aid , Cofee
give an example of a solvent and a solute
Water
the Kool aid powder
The formula for volume and density
Volume V=length(times)width(times)height(times)
Density=Mass / Volume
Volume is measured in________
Cubic centimeters
