The Phosphorus Cycle: Earth's Nutrient Journey

Kaylee and Marvin are helping their friend Nekoda with his science homework. They come across the word "phosphorus" and start guessing what it could be. Which of the following options best describes phosphorus?

• a chemical element

• a type of rock

• a kind of plant

• a form of energy

Addilyn, Gordon, and Wyatt are exploring nutrients in their science class. They discover that phosphorus is an essential nutrient that all living things need. What is an essential nutrient?

• a nutrient your body needs to grow

• a nutrient your body does not need to grow

• toxic chemicals

• Carbon dioxide

Wyatt, Jaylah, and Justin are on a chemistry adventure, exploring the mysteries of the periodic table! They discover the element phosphorus and want to write its chemical symbol in their science journals. Which of the following is the correct chemical symbol for phosphorus?

• Ph

• P

• S

• Po

Madison, Jordan, and Wyatt are on an adventure in nature, searching for hidden treasures in the phosphorus cycle for their science project. They wonder: Where is phosphorus mainly hidden in nature? Where should they start their treasure hunt?

• Atmosphere

• Rocks and soil

• Water

• Plants

Wyatt, Madison, and Zahir are on a biology adventure! Their teacher gives them a challenge: "Can you solve this riddle? Why is phosphorus a superstar nutrient for living things?" Complete the sentence: Phosphorus is needed to build ______, the instructions for all living things.

• DNA

• Proteins

• Lipids

• Carbohydrates

Jayceon, Wyatt, and Gabby are on a scientific adventure, discovering how their bodies get energy! Their teacher gives them a clue: phosphorus helps produce the ______ that gives energy to cells. Can you help them complete the missing word?

• energy

• protein

• sugar

• membrane

MacKenzie, Gordon, and Alliana are on a scientific adventure! Their teacher gives them a fun fact: phosphorus helps build strong ______ and ______. What should they write in their science journals?

• bones and teeth

• muscles and nerves

• skin and hair

• lungs and heart

Jordan, Madison, and Gordon are on a gardening adventure with their grandmother, planting juicy tomatoes and crunchy carrots! They discover that phosphorus is a star nutrient in ______ that helps plants grow delicious fruits and vegetables. Can you help them fill in the blank?

• fertilizers

• pesticides

• herbicides

• insecticides

Zahir, Alliana, and Kaylee are on a scientific adventure to discover how animals get the phosphorus they need to have super strong teeth and bones. They discover that animals get phosphorus by eating ______ or other ______. Can you help them fill in the blank?

• plants, smaller animals

• rocks, soil

• water, sunlight

• sunlight, plants

Jordan, Gabriel, and Madison are on a scientific adventure, exploring how phosphorus travels in nature for their project. They are curious: Does the phosphorus cycle show how this important nutrient moves through which of the following?

• Only water

• Only rocks

• Rocks, soil, water, living organisms, dead organisms, and waste

• Only living organisms