10 cosas que puedes hacer para ahorrar electricidad

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

Pets! We love them, and we take good care of them. Learn all about what Fish need to be happy and healthy pets. ¡Las mascotas! Las amamos y las cuidamos mucho. Aprende todo sobre qué necesitan los Peces para estar felices y ser mascotas saludables.

«En la soledad, el abismo» recopila en versos todo lo que no puede recopilarse en abrazos, esa ausencia indescriptible y el doloroso miedo de la fragilidad humana. Cada poema rasga el verso para encontrar la belleza en la soledad cotidiana y en la amargura de una soledad que sobrepasa lo inalcanzable. Cada soledad es un universo. Espero que puedas encontrar la tuya en el mío y, así, juntas, nuestras soledades bailarán su vals acompasadas.

Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what caused Muddy Creek to erode, and the many steps involved in saving it. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for makerspace activities. It makes STEAM career connections by...