chemistry experiments for children

4 cupsofwater, Thewatershouldbe slightlywarmerthanroomtemperature. Stir until you are sure the water and sodiumsilicate have tho ...

eachiofan inchshorterthanthedrinkingglasses. To one end of each string, tie one small crystal of the salts listed above. Tie the ...

the same shape and had the same generalappearanceregardless of size. Crystals tied on the string wereseedcrystals. They provided ...

THE CHEMISTRY OF FIRE Formankind,the discoveryoffire and how to use it wasprobablythe single mostimportanteventthateverhappened. ...

HOW YOU CAN DISCOVER WHAT AFLAME IS Gather these materials: A wooden match;a waxtaper;a smallcandle;a cigarettelighter;a pieceof ...

deaddiatoms,microscopiccreatures(hatlive in water. The word"hydrocarbon" means asubstancethatcontainshydrogen andcarbon. Burning ...

Results:No two of the flames looked exactly alike, but they all had some things incommon.The candle flame was mostly yellow, but ...

gooutat all, if the corks were very large. In the glass chimneys,neitherflame went out,butthe flame inside the chimney resting o ...

does not look hot.Don'ttouchit for a while. When the glass is cool, cut the ends with thetriangularfile to form two nozzles.Fire ...

HOWTOMAKEANOTHERFUEL* CAUTION:see Noteonpage 66. Gather these materials: Anuprightstandandclamp;an alcoholburner; 2 test tubes;o ...

THE CHEMISTRY OF ACIDS, BASES AND SALTS You must learn a littleaboutthe chemical composition and structure of acids and bases. B ...

outof its molecules. Examplesofacids are hydrochloricacid (HCl), sulfuric acid (H2S0 4 ) ,andcarbonicacid (H2C0^3 ) .Abase(the s ...

Substance Reactionofbluelitmuspaper Reactionofredlitmuspaper H2COa turnedpaperred none NaCI NH40H NaOH HCIO MgS0 4 HaBOa CHaCOOC ...

radicals willing to be pushedoutof their molecules. Theseneutralsubstances, therefore,are neither acids nor bases. Lookingat you ...

the litmus paper. When theamountof change begins to become very small use only I drop of alkali at a time.Continueuntil you reac ...

THE CHEMISTRY OF PHOTOGRAPHY You haveprobablytakenmany pictures yourself, and posed for many more. Have you ever wonderedaboutth ...

with adiametera little largerthanthediameterofa test tube. Putthis piece ofpaperover the surfaceofthehydrogenperoxide. Now fill ...

HOW YOU CAN MAKE ABLUEPRINT Gather these materials: Two shallow pans, preferably glass or plastic; a measuring cup; a tablespoon ...

The sunlightdidn'taffect thecolorofthe blueprintpapereither, butit did producea chemical changethatyou could not see. Theequatio ...

let them drain off. They should be wet, but not dripping. Now darken the room. The roomneedn'tbe pitch black; you may use a red ...