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Mars is a rocky planet that moves around (orbits) our Sun in the same way as Earth. It is the planet next to Earth as you move outwards away from the Sun

Our Solar System

Do you know the names of each of the planets? Drag the labels in the list below to the correct planet's box!

JupiterMercuryNeptuneEarthUranusSaturnMarsVenus Show/Hide Labels
Neptune Uranus Saturn Jupiter Mars Earth Venus Mercury

Earth and Mars are just two of several planets which form part of our solar system (the planets and other structures which orbit the Sun). All the planets are very different, for example they have different sizes, are made of different materials, and have different orbital paths. We know a lot about Earth, but we only have some knowledge about the other planets. In the research exercise below you find out more about them, especially Mars!

Activity: Research Exercise

Look at the data in the table, and then answer the questions which follow

 MercuryVenusEarthMarsJupiterSaturnUranusNeptunePluto
Mass (1 000 000 000 000 000 000 000 000 kg)0.3304.875.970.642189856886.81020.0146
Diameter (km)487912,10412,7566792142,984120,53651,11849,5282370
Density (kg/m3)54275243551439331326687127116382095
Gravity (m/s2)3.78.99.83.723.19.08.711.00.7
Length of Day (hours)4222.62802.024.024.79.910.717.216.1153.3
Distance from Sun (1 000 000 km)57.9108.2149.6227.9778.61433.52872.54495.15906.4
Orbital Period (days)88.0224.7365.2687.04,33110,74730,58959,80090,560
Mean Temperature (C)16746415-65-110-140-195-200-225
Number of Moons0012676227145

Research Exercise

1
How many moons does Mars have?
2
Which planet in the solar system has the largest diameter?
3
Which planet has the shortest orbital period, ie. the shortest travel time around the sun?
4
Which is heavier: Earth or Mars?
5
How much longer is one day on Mars than on Earth?
hours
6
How much further from the Sun is Mars compared to Earth?
1 000 000 km
7
What is the difference in temperature between Mars and Earth?
°C

More Information about Mars!

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