What's crazy about these creatures? The purple frog lives almost its whole life underground. The wood frog's heart stops beating in winter. The Argentine horned frog is also known as the… More →

What's crazy about these creatures? The Komodo dragon can eat a whole deer. The thorny devil is covered in spikes. The green crested basilisk can run on water. Read about the coolest lizards… More →

What's crazy about these creatures? Capybaras can sleep in the water. The duck-billed platypus has venom-filled spurs. Colugos can glide from treetop to treetop. Read about the coolest… More →

Soil isn't just dirt. It is an ecosystem that supports all life on Earth. Learn what makes it special and practice reading words with the special vowel teams of oi and oy. More →

The enormous Eastern State Penitentiary in Philadelphia, Pennsylvania, is a looming lockdown…for lost souls! Find out why this old prison makes even the toughest tremble. Dare to discover why More →

Prevent the "summer slide" and keep minds active with Crabtree's Summer Backpacks. Each Gold Level Spanish backpack includes 7 items: Bilingual Welcome Letter, Two Spanish fiction books, Two More →

Prevent the "summer slide" and keep minds active with Crabtree's Summer Backpacks. Each Platinum Level Spanish backpack includes 9 items: Spanish Language Welcome Guide, Spanish Language… More →

The beautiful Gold Brook Covered Bridge in Stowe, Vermont, is a picture-perfect place…for horror! Known by ghost hunters as Emily's Bridge, this place gives even the bravest the creeps. Dare More →

Matter is everything all around us. Learn about types of matter and practice reading words with the sound of long e spelled ee, ea, y, ie, ey, and e-consonant-e. More →

Our solar system is a huge and interesting place. Learn what makes it special and practice reading words that have a long vowel sound spelled with the vowel-consonant-e pattern. More →