Su silencio

What causes sound? How does sound travel? Sound begins when matter vibrates. Without this vibration sound could not move and nothing would make any noise. Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments that will appeal to readers of all ages.

Practice addition at the playground! This fun title, that has been translated into Spanish, uses examples from all around the playground to help children practice their addition and understand early STEM themes. Add up two blue swings and three red swings to get five swings! Add slides, rings, jump ropes, basketballs, and more! These familiar images work in conjunction with engaging "You Try It!" problems to encourage young readers to practice and improve their addition skills.

Introduce your child to the different types of resources that animals use to survive in the wild in the Spanish children's book Las necesidades de los animales. What are the different kinds of resources that animals use to stay alive? Learn about why animals need food, water, shelter, and more. Spanish Book Features: This Spanish children’s science book features a photo glossary, new vocabulary words, and an extension activity to help develop reading comprehension skills while meeting NGSS life science standards. 24 pages of vibrant photographs About Rourke Educational Media: We proudly...

Mediante la técnica del flash-back el autor nos cuenta dos historias paralelas separadas por miles de años de diferencia pero con un punto en común: las pinturas rupestres de Altamira.