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  • Mars

Mars is also called the Red Planet because the iron on its surface gives off a red glow. The atmosphere is about 100 times less dense than that of the earth. It consists of carbon dioxide with very small quantities of water vapour. Ice fields form at a temperature of –125 degrees Celsius in winter. Summer temperatures reach a maximum of 20 degrees Celsius.

Illustration of the position of the planets in the solar system

THE OUTER PLANETS

  • Jupiter

Jupiter contains 300 times as much matter as the earth and is the largest planet in the solar system. Jupiter is a giant ball of liquid gas and possibly has no solid surface. The only features that can be seen through a telescope are coloured stripes of clouds stretching around Jupiter. Jupiter has a large red spot known as the Red Spot. It is a tornado (a storm) which rages permanently and covers an area greater than the earth’s surface.

  • Saturn

Saturn is the second gas giant and is very much like Jupiter. It consists mainly of hydrogen and helium with a surface temperature of –170 degrees Celsius. Saturn’s spectacular rings make it one of the brightest objects in our solar system. The rings move around the equator of Saturn in a very thin band. They consist of millions of pieces of ice, almost like snowballs. Saturn has seventeen moons of which Titan is probably the largest in our solar system. Two Voyager spacecraft have already been dispatched to explore the outer planets. Saturn is eight times further from us than the sun. It takes the radio signals from the spacecraft more than an hour to reach the earth.

  • Uranus, Neptune and Pluto

These three planets are very far from the earth and are known as the ice giants. Surface temperatures vary between –197 degrees Celsius to –233 degrees Celsius.

Task 4

  • Use the initial letters of the names of the planets, (M, V, E, M, J, S, U, N, P) to make a rhyme or story to help you remember the order of the planets.

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TASK 5

Answer the following questions:

1. Which planet becomes so hot that lead would melt on its surface?

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2. Give two reasons why life as we know it is impossible on Mars.

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3. Why is Venus sometimes called Earth’s twin?

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Questions & Answers

I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
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Source:  OpenStax, Natural sciences grade 7. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11077/1.1
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