Back to School at FamilyEducation.com

VENUS

Venus is only a little smaller than Earth, is made up of rock, and has an atmosphere, but it is otherwise quite unlike our planet. Its surface is covered with volcanoes, the atmosphere is crushing, and the temperature is hotter than an oven. Venus completes its orbit in 225 Earth days, but turns slowly, taking 243 Earth days to rotate once. This means that a day on Venus is longer than its year.

Table 10. ESSENTIAL DATA

Diameter at equator12,104 km (7,521 miles)
Average distance from Sun108.2 million km (67.2 million miles)
Orbital period224.7 days
Rotation period243 days
Mass (Earth=1)0.82
Gravity (Earth=1)0.9
Average surface temperature464°C (867°F)
Number of moons0
VOLCANIC LANDSCAPE

Maat Mons is one of the largest volcanoes on Venus. Around 200 km (125 miles) across, it rises 9 km (5 1/2 miles) in height. Probably extinct, it has erupted repeatedly in the past, spewing out vast quantities of runny lava that formed the surrounding volcanic plains.

CLOUDY ATMOSPHERE

The atmosphere of Venus is much thicker than that of Earth and is made up mostly of carbon dioxide. Its pressure is nearly 100 times Earth’s atmospheric pressure. The dense clouds in the atmosphere are made up of sulphuric acid droplets. The atmosphere traps heat like a greenhouse, sending the temperature soaring to more than 475°C (900°F).

Copyright © 2007 Dorling Kindersley

stay connected

Sign up for our free email newsletters and receive the latest advice and information on all things parenting.

Enter your email address to sign up or manage your account.

Facebook icon Twitter icon Follow Us on Pinterest

editor’s picks

highlights

Handwriting Headquarters
We've got handwriting practice worksheets, handwriting tips, and answers to your child's writing struggles, just in time for back to school. Brought to you by BIC.

11 Coolest Lunch Boxes for Kids
Send your child's lunch to school in style! Check out our picks for the 11 best lunch boxes with great features from BPA-free accessories to spill-resistant fabric.

7 Important Back-to-School Safety Tips
Follow these back-to-school safety tips to make sure your child stays safe on the way to school, in the classroom, and while on the playground.

Kindergarten Readiness App Wins Gold
Our Kindergarten Readiness app won the Gold Award of Excellence in the educational category at the 2014 Communicator Awards. This valuable checklist comes with games and activities to help your child practice the essential skills she needs for kindergarten. Download the Kindergarten Readiness app today!

Join BIC on our mission to save handwriting and Fight For Your Write! Writing helps kids become better readers, boosts their confidence and sparks their creativity. Visit BICFightForYourWrite.com to sign our petition to save handwriting!