What are the properties of bases?
You are studying acids and bases??
Bases have a high pH (above 7).
They feel slippery.
They form hydroxide ions when placed in solution (they may do this by releasing a hydroxide ion or by causing them to be formed)
Bases are caustic (harmful to human skin)
They taste bitter.
Bases turn litmus paper blue and phenolphthlein pink.
Hope this answer gets you started and helps.