T OPI C – L E SSON 5 ANCI E NT GRE E K S L .O - to unde rsta nd the Arc hime de s Princ iple a nd the re le va nc e of it
E quipme nt L ist A me a suring jug • A b o ttle o f wa te r • A la rg e b o wl • X30 inte r c o nne c ting b ric ks suc h a s L e g o • Co lo uring pe ns • Ac tivity she e ts • Alte rna tive ly if yo u ha ve no inte rc o nne c ting b ric ks yo u c o uld use ho use ho ld ite ms suc h a s • – a pple s, g ra pe s, stra wb e rrie s, sha llo ts, te a b a g s o r a nything e lse tha t is sma ll a nd lig ht
Star te r Ac tivity Onc e yo u ha ve wa tc he d the vide o c lip the re a re thre e q ue stio ns a ske d a b o ut the Arc hime de s Princ iple . On yo ur wo rkshe e t, yo u will find a spa c e whe re yo u a re a b le to a nswe r the se .
Main Ac tivity Afte r vie wing the de mo nstra tio n o n the vide o , ple a se a nswe r the q ue stio ns o n the wo rkshe e t. De pe nding o n whic h e q uipme nt yo u ha ve use d, ple a se c o mple te the ma tc hing wo rkshe e t.
Challe nge I ho pe yo u ha ve e njo ye d finding o ut a b o ut ho w o b je c ts flo a t. T o e xte nd yo urse lf furthe r, he re a re a fe w o the r c ha lle ng e s. 1. T ry the sa me inve stig a tio n b ut this time c ha ng e the vo lume o f wa te r. Do e s it diffe r? Are the re sults the sa me ? 2. T ry using diffe re nt ho use ho ld ma te ria ls. Do a ll sma ll a nd lig ht o b je c ts flo a t? 3. I n the vide o I sug g e ste d using g ra pe s. I f yo u did use the se the n yo u will kno w tha t a ltho ug h the y a re sma ll a nd lig ht the y do no t flo a t. Pla c e a g ra pe into yo ur me a suring jug a nd a dd in ta b le spo o ns o f sa lt. Onc e yo u ha ve a dde d 4-5 ta b le spo o ns yo u ma y no tic e so me thing inte re sting o c c uring ? Why mig ht this ha ve ha ppe ne d? On yo ur wo rkshe e t, the re is a spa c e to a nswe r a ll o f the se c ha lle ng e s.
Glossar y c hime de s – Anc ie nt Gre e k physic ist, ma the ma tic ia n, e ng ine e r, inve nto r a nd a stro no me r Ar Buoyanc y – is a n upwa rd fo rc e e xe rte d b y a fluid tha t o ppo se s the we ig ht o f a pa rtia lly o r fully imme rse d o b je c t De nsity – is a me a sure me nt tha t c o mpa re s the a mo unt o f ma tte r a n o b je c t ha s to its vo lume Displac e me nt – the a c tio n o f mo ving so me thing fro m its pla c e o r po sitio n e ka – Gre e k phra se me a ning , "I 've g o t it!" E ur luid – a sub sta nc e tha t c o ntinua lly flo ws, suc h a s wa te r F se – dip o r sub me rg e in a liq uid Imme r inc iple – A g e ne ra l sc ie ntific the o re m o r la w Pr Volume – is the spa c e tha t a sub sta nc e o c c upie s o r c o nta ins
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