Holt Earth Science

300 Science Quizzes: 150 Capital city quizzes, 120 Chemistry and Periodic Table quizzes, 20 Astronomy picture-quizzes and 10 questions about the speed of light for middle and high school students.

Earth MKV converter is not only able to convert video files in all formats into MKV but also convert MKV video files into all popular formats. For example, you can convert MKV to 3GP video format or convert mkv to dvd format. Earth MKV converter can do all video conversions from or to MKV. While...

Solar System 3D Simulator is a FREE software application that generates a realistic solar system model and planets in 3 Dimension on the PC using advanced physics formulas. It can display the planets and their orbits, the sun and the moon. The nine planets including planet earth and their...


Platforms: Windows

Beautiful Earth is a Desktop Wallpaper generator and Screen Saver. Beautiful Earth shows you how the Earth looks like from the space at this very moment. You can see which parts of the Earth are enjoying the sun light. And in night areas you can see the city lights. Based on NASA's Blue...


Platforms: Windows

DVD TO MKV - rip dvd and convert dvd to MKV DivX, XviD, H.264, MPEG-4 movie. Earth DVD To MKV Converter is powerful and easy-to-use DVD to MKV(Matroska Video) ripping software which helps you Convert Video from DVD to MKV(Matroska Video) with amazing fast and quality. With Earth DVD to MKV...


Platforms: Windows

Aliens are attacking Earth and you must stop them. Use your military skills to blast the aliens into submission and save the planet! Cool graphics and upgrades make this an exciting battle!


Platforms: Windows

Science Helper for Ms Word is a type of implemental software for making scientific graphs based on Ms Word. It's a useful tool for making physics, chemistry and math graphs in Word documents. This program saves the inconvenience of creating and importing all kinds of scientific, function and...


Platforms: Windows

Army of Earth is an online action/strategy team combat game, allowing hundreds of players and up to 6 teams to play together in an open, outdoor 3D environment. It is easy to learn and use, with mouse-based controls, yet provides deep gameplay. It is a TEAM game and mastery will require not only...


Platforms: Windows

DSTK - Data Science Toolkit 3 is a set of data and text mining softwares, following the CRISP DM model. DSTK offers data understanding using statistical and text analysis, data preparation using normalization and text processing, modeling and evaluation for machine learning and algorithms. It is...


Platforms: Windows, Windows 8, Windows 7, Windows Server

Earth DVD To MPEG Converter is an excellent DVD Ripping software, which allows you to convert DVD movie to MPEG file with amazing fast and quality. With Earth DVD To MPEG Converter's help, you can easily convert your favourite DVD movie to MPEG-1(VCD) and MPEG-2(SVCD,DVD). With Earth DVD to...


Platforms: Windows

Earth DVD To MP3 Converter is powerful, easy-to-use DVD to mp3 ripping software, With Eztoo DVD To MP3 Converter you can transfer the entire DVD film into audio formats, or transfer only the brilliant part of the film by setting Begin time and end time. Extract DVD movies audio track and...


Platforms: Windows

This is a very useful calculator for science students. The system contains a scientific calculator that can calculate molecular mass, and from this main calculator over 80 other calculators and science tools can be called. These include an extensive measurement converter, an area and volume...


Platforms: Windows

Earth DVD to 3GP Converter is an powerful and easy DVD 3GP ripping software for convert DVD to 3GP video with excellent quality. You can enjoy your favorite DVD on your Mobile phone as a portable DVD Player. It is faster than other DVD 3GP Converter software and just a few clicks is enough....


Platforms: Windows

Earth DVD To MP4 Converter is fast, easy-to-use DVD Ripping software, can convert DVD to MP4 video formats, which are extensively supported by most portable media players (MP4 player) such as Video iPod, iPod touch, Apple TV, Zune, Archos AV500/AV700/Gmini402, iRiver PMP-100, Creative Zen Vision,...


Platforms: Windows

Earth DVD to iPod converter is the new generation of DVD to iPod Converter software, While the image quality is high, the conversion speed is very fast (up to 600%). With Earth DVD To iPod Can helps you Convert DVD to iPod Video format and convert dvd to iPod audio format. If you want to...


Platforms: Windows

Earth time zone is an interactive 3D global Time zone, show more than 250 countries local standard times, allows you to add any country Timezone, Find time zone information by country name around the world. As a high resolution interactive 3D world map clocks,including countries, lakes, rivers,...


Platforms: DOS, OS/2, BeOS, Palm OS, Windows, Mac, *nix, Windows CE

Earth is invaded from another galaxy... Take the world's fate in your hands in funny arcade TYPING game! FULL GAME FEATURES: 6 awesome weapons and items - plus a secret two!, Increasingly, difficult waves, Open-ended gameplay, Internet high score table - (coming soon), no nag, screen, Unlimited...


Platforms: Windows

A fast shoot-em-up -  with a twist. You have 10 seconds to live, flying close to asteroids or destroying enemies grants extra time. How long can you last?Features retro-styled, black and white graphics, huge explosions, a catchy soundtrack and cool slow motion effects. Experimental Twitter...


Platforms: Mac

You are a pilot of space interceptor bound back to Earth in order to give the captured alien spacecraft into the hands of scientists. The aliens are trying to stop you from doing this by sending a huge armada of their battleships. You have to destroy them all to accomplish your mission. You’ll...


Platforms: Windows

Develop slick and professional scientific or engineering software or Web sites faster and easier with a comprehensive collection of scientific icons. Science Toolbar Icons depict common objects and symbols used in various fields of science and engineering, including Retort, Test Probe, Molecule,...


Platforms: OS/2, Windows, Mac, *nix, Windows CE, Pocket PC, Other,Android,BlackBerry,iPhone,iPod,iTouch,Palm,Palm OS 6.0,Handheld/Mobile Other,Java,AS/400