<< Chapter < Page Chapter >> Page >

Social sciences: history

Grade 7

The first people

Module 13

The taung child

  • The probable age of the earth is calculated to be 6 billion years. Human beings and their predecessors have only existed for about 5 million to 8 million years, while human beings who have cultivated their own food and have lived in organised communities have only been on the earth for 6 000 to 8 000 years. This takes up hardly one millionth of the world's age.
  • This module will help you to discover something about people who lived millions of years ago. What we have been able to discover about them has come from evidence. Much of this evidence is obtained from bones, tools and painted pictures that have been discovered. But there is virtually no source material for long periods in the past . . .
  • More than 3 000 parts of skeletons belonging to early people have already been gathered in Africa. The accompanying map shows the different places in South and East Africa where these discoveries were made.

  • Africa has become known as the cradle of mankind because some of the oldest human fossils have been discovered here.
  • We'll be finding out how the fossils that archaeologists have found are able to tell us about the lives of these early people.

The human race developed in Africa. The remains of a Southern African child who died about 3 million years ago have provided many clues about early people. This evidence of the earliest member of the human race identified to date was discovered in 1924 in a limestone quarry near the town of Taung (“the place of the big lion”), 80 km north of Kimberley (in the North-west Province. A worker who was blasting limestone in the quarry found a small skull, which was sent to Professor Raymond Dart.

He immediately realised that it was different to anything he had ever seen.

This skull displayed two important features of the human race (hominids), namely:

  • small eye-teeth and
  • an erect posture

The skull was particularly small, which led Professor Dart to conclude that it belonged to a child of about five years of age. This is what suggested the idea of a Taung child. The evidence indicated that the child walked upright, like we do. Professor Dart therefore gave it the scientific name Australopithecus . According to what we know at present, Australopithecus was the first creature that walked upright, like modern people.

Activity 1:

To reconstruct the past

[lo 3.3]

Try to convince your friend by means of scientific arguments that people could not have developed from apes. (Or organise a class debate!)

Source A

Source B

The anatomy of a chimpanzee compels this animal to walk on the outside edges of its feet and therefore to waddle. This differs from the way of walking that is common to human beings, which was also used by Australopithecus .

People are the only primates that walk upright.

This means that the shape of the pelvic girdle, the position of the thighbone and the way in which the feet are placed on the ground are very specific.

The way in which the thighbone bears the weight of the body in humans is also different from how this happens in apes. It is easy to see that Australopithecus is more closely related to human beings than to apes with regard to all these aspects when the Australopithecus skeleton is compared to the skeletons of apes and humans.

Questions & Answers

how did you get 1640
Noor Reply
If auger is pair are the roots of equation x2+5x-3=0
Peter Reply
Wayne and Dennis like to ride the bike path from Riverside Park to the beach. Dennis’s speed is seven miles per hour faster than Wayne’s speed, so it takes Wayne 2 hours to ride to the beach while it takes Dennis 1.5 hours for the ride. Find the speed of both bikers.
MATTHEW Reply
420
Sharon
from theory: distance [miles] = speed [mph] × time [hours] info #1 speed_Dennis × 1.5 = speed_Wayne × 2 => speed_Wayne = 0.75 × speed_Dennis (i) info #2 speed_Dennis = speed_Wayne + 7 [mph] (ii) use (i) in (ii) => [...] speed_Dennis = 28 mph speed_Wayne = 21 mph
George
Let W be Wayne's speed in miles per hour and D be Dennis's speed in miles per hour. We know that W + 7 = D and W * 2 = D * 1.5. Substituting the first equation into the second: W * 2 = (W + 7) * 1.5 W * 2 = W * 1.5 + 7 * 1.5 0.5 * W = 7 * 1.5 W = 7 * 3 or 21 W is 21 D = W + 7 D = 21 + 7 D = 28
Salma
Devon is 32 32​​ years older than his son, Milan. The sum of both their ages is 54 54​. Using the variables d d​ and m m​ to represent the ages of Devon and Milan, respectively, write a system of equations to describe this situation. Enter the equations below, separated by a comma.
Aaron Reply
find product (-6m+6) ( 3m²+4m-3)
SIMRAN Reply
-42m²+60m-18
Salma
what is the solution
bill
how did you arrive at this answer?
bill
-24m+3+3mÁ^2
Susan
i really want to learn
Amira
I only got 42 the rest i don't know how to solve it. Please i need help from anyone to help me improve my solving mathematics please
Amira
Hw did u arrive to this answer.
Aphelele
hi
Bajemah
-6m(3mA²+4m-3)+6(3mA²+4m-3) =-18m²A²-24m²+18m+18mA²+24m-18 Rearrange like items -18m²A²-24m²+42m+18A²-18
Salma
complete the table of valuesfor each given equatio then graph. 1.x+2y=3
Jovelyn Reply
x=3-2y
Salma
y=x+3/2
Salma
Hi
Enock
given that (7x-5):(2+4x)=8:7find the value of x
Nandala
3x-12y=18
Kelvin
please why isn't that the 0is in ten thousand place
Grace Reply
please why is it that the 0is in the place of ten thousand
Grace
Send the example to me here and let me see
Stephen
A meditation garden is in the shape of a right triangle, with one leg 7 feet. The length of the hypotenuse is one more than the length of one of the other legs. Find the lengths of the hypotenuse and the other leg
Marry Reply
how far
Abubakar
cool u
Enock
state in which quadrant or on which axis each of the following angles given measure. in standard position would lie 89°
Abegail Reply
hello
BenJay
hi
Method
I am eliacin, I need your help in maths
Rood
how can I help
Sir
hmm can we speak here?
Amoon
however, may I ask you some questions about Algarba?
Amoon
hi
Enock
what the last part of the problem mean?
Roger
The Jones family took a 15 mile canoe ride down the Indian River in three hours. After lunch, the return trip back up the river took five hours. Find the rate, in mph, of the canoe in still water and the rate of the current.
cameron Reply
Shakir works at a computer store. His weekly pay will be either a fixed amount, $925, or $500 plus 12% of his total sales. How much should his total sales be for his variable pay option to exceed the fixed amount of $925.
mahnoor Reply
I'm guessing, but it's somewhere around $4335.00 I think
Lewis
12% of sales will need to exceed 925 - 500, or 425 to exceed fixed amount option. What amount of sales does that equal? 425 ÷ (12÷100) = 3541.67. So the answer is sales greater than 3541.67. Check: Sales = 3542 Commission 12%=425.04 Pay = 500 + 425.04 = 925.04. 925.04 > 925.00
Munster
difference between rational and irrational numbers
Arundhati Reply
When traveling to Great Britain, Bethany exchanged $602 US dollars into £515 British pounds. How many pounds did she receive for each US dollar?
Jakoiya Reply
how to reduced echelon form
Solomon Reply
Jazmine trained for 3 hours on Saturday. She ran 8 miles and then biked 24 miles. Her biking speed is 4 mph faster than her running speed. What is her running speed?
Zack Reply
d=r×t the equation would be 8/r+24/r+4=3 worked out
Sheirtina
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, History grade 7. OpenStax CNX. Sep 09, 2009 Download for free at http://cnx.org/content/col11023/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'History grade 7' conversation and receive update notifications?

Ask