atom
اتم
Everything is made up of tiny atoms.
crystal
بلور
Crystals are solids whose atoms form a very regular pattern.
diamond
الماس
A diamond is a very hard, shiny jewel.
emerald
زمرد
An emerald is a hard, shiny, deep green jewel.
gem
جواهر، سنگ گرانبها
Gems sparkle and shine.
geyser
چشمه آب گرم، (زمین شناسی) آبفشان
A geyser is a natural hot spring that occasionally sprays water and steam above the ground.
geology
زمین شناسی
Geology is the study of the Earth’s structure, including rocks and minerals.
glacier
یخچال، یخچال طبیعی
A glacier is a large, slowly-moving river of ice.
gold
طلا
Gold is a precious metal. Coins and jewelry are made from gold. The Sacajawea US dollar coin above looks like gold.
granite
سنگ خارا، گرانیت
Granite is a common type of igneous rock. Granite is formed in a slow cooling process.
igneous rock
سنگ آذرین، سنگ آتش فشانی
When molten rock cools, igneous rock is formed.
impact crater
باقی مانده های برخورد یک شهاب سنگ یا سیارک با زمین
Impact craters are the remains of collisions between an asteroid or meteorite and the Earth.
iron
آهن
Iron is a common metal that is used for many things, like train tracks, pots, and pipes.
lava
گدازه
Lava is molten rock. It comes out of erupting volcanoes.
limestone
سنگ آهک
Limestone is a type of sedimentary rock that is made of the skeletons of tiny microorganisms.
