T OPI C L E SSON 5 ANCI E NT GRE E K S L .O - to unde - - PowerPoint PPT Presentation

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

• 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

• 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

Ar 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 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 ur e ka – Gre e k phra se me a ning , "I

've g o t it!"

F luid – a sub sta nc e tha t c o ntinua lly flo ws, suc h a s wa te r Imme r se – dip o r sub me rg e in a liq uid Pr inc iple – A g e ne ra l sc ie ntific the o re m o r la w Volume – is the spa c e tha t a sub sta nc e o c c upie s o r c o nta ins