Carson Dellosa STEM Challenges Learning Cards for Kids Ages 7-10: 30 Hands-On Physical, Life, Earth & Space Science Activities

The Carson Dellosa STEM Challenges Learning Cards offer 30 hands-on science activities designed for children ages 7 to 10 (grades 2–5). Each card measures 7.75 x 5.5 inches and covers physical, life, earth, and space science topics. Activities use common household materials and include easy-to-follow directions on the front and hints, questions, and science explanations on the back. This boxed set includes a divider for organization, making it suitable for classroom centers, homeschool lessons, or on-the-go learning.

Hands-On STEM Learning for Grades 2–5

These challenge cards encourage kids to build, create, and experiment with projects like paper rockets and simple science experiments. Each card is two-sided: the front shows the challenge and a visual list of needed materials; the back provides hints, questions, and a “What’s going on?” section explaining the science behind the activity. The open-ended nature means there is no single correct way to complete a challenge, promoting creativity and problem-solving.

What Science Topics Do the Cards Cover?

The set spans four science domains: physical science (e.g., forces, motion), life science (plants, animals), earth science (weather, rocks), and space science (planets, stars). While individual card topics aren’t listed, the variety ensures a broad introduction to STEM concepts. Each card includes fun facts and extension questions to deepen understanding.

Card Dimensions and What’s Inside

The compact card size fits easily in backpacks or bins, and the divider keeps cards sorted by topic or activity.

How to Use the Challenge Cards

Each card lists the materials needed—typically common items like paper, tape, scissors, or craft supplies. Directions are simple enough for independent work, but adults can facilitate discussion using the back-of-card questions. Activities work well for whole-class instruction, small groups, or individual early finishers. The set also supports indoor recess and homeschool curriculum.

Common Questions About This STEM Kit

What age or grade is this for?

The kit is designed for ages 7–10, corresponding to grades 2 through 5. The activities vary in complexity so they can be adapted across this range.

How many cards are included?

The box contains 30 double-sided challenge cards plus a divider card.

Do I need special materials?

No—each activity uses simple, common materials likely already at home or in a classroom. The front of each card lists exactly what is needed.

Are there instructions for each challenge?

Yes. The front side gives the challenge and materials; the back provides hints, step-by-step guidance, and science explanations to support learning.