What is the lightest alkaline earth metal? What metal is the best electric conductor? What is the most reactive metallic atom? What is the most abundant metal element in the Earth's crust? What alloy is used to hold molten metals?
How wide is the Earth's mantle? Is the Earth's crust denser than the mantle? The mantle makes up what percent of Earth's volume? What is the temperature of the Earth's mantle? How big is the mantle of the Earth? What percent of the Earth is the mantle?
The troposphere, the bottommost layer of Earth’s atmosphere, is the densest of the five atmospheric layers and extends from ground level up to about 10 kilometers in altitude. This is the layer where humans live and breathe, as it contains the air we depend on for survival. The tropospher...
Discuss with the whole class what the relative thicknesses of the layers are — that the inner core and outer core together form the thickest layer of the Earth and that the crust is by far the thinnest layer. What is the hottest layer of the Earth? The core is the hottest, densest pa...
The crust is the outermost layer of the planet, the cooled and hardened part of the Earth that ranges in depth from approximately 5-70 km (~3-44 miles). This layer makes up only 1% of the entire volume of the Earth, though it makes up the entire surface (the continents and the ocea...
The crust of Mercury is likely very thin, thinner than Earth's. The outer shell is only about 300 to 400 miles (500 to 600 km) thick. The planet has no plate tectonics, which is part of the reason the cratered surface has been preserved for billions of years. ...
All it needs is some good marketing. One selling point might be that most if not all mined iridium ultimately comes from meteorites, which contain 300-1500 times as much iridium as the earth’s native crust. OK, that’s iridium. Now here’s the weird deal on osmium. A series of web...
Here's why the private Athena lunar lander toppled over on the moon 2 Venus' crust is surprisingly thin. Could this explain why it's so geologically active? 3 That's a hat trick! Varda successfully returns 3rd space capsule from orbit 4 'Alien: Earth' is almost ready to burst out, as...
Mineral strength is calculated by measuring tenacity, hardness, cleavage, and fracture. Examine the methods of each of these concepts through examples, and learn about the usage of the Mohs scale to determine the hardness of a mineral, and find examples of brittle, malleable, sectile, and elast...
What is the most abundant gas in Earth's atmosphere? Composition of Earth's Atmosphere The atmosphere is made of gas and lots of it! Although the atmosphere contains many types of gas, one gas accounts for more than 70% of Earth's atmosphere, making it by far the most abundant. ...