CAST — California Science Test

The CAST — California Science Test is California's state science assessment. Here's who takes it, what's on it, and how to get ready — with free COSMIQ practice. COSMIQ helps you prepare for the CAST — California Science Test and administers realistic practice; it does not administer the official test.

Fast facts

  • State: California
  • Subject: Science

Frequently asked questions

Who takes the CAST — California Science Test?

Grade 5 (covers G3-5 NGSS PEs); Grade 8 (covers MS NGSS PEs); High School (covers HS NGSS PEs)

What does the CAST — California Science Test cover?

Physical Science, Life Science, Earth & Space Sciences, Engineering Design.

Is CAST — California Science Test practice on COSMIQ free?

Yes. COSMIQ is free for every K-12 student — voice tutoring, a smart board, and realistic practice, with no card required.

Practice for the CAST — California Science Test — free