Open-and-go lessons that inspire kids to love science.

Science curriculum for K—5th grades.

90 sec
  • Hands-on lead students in the doing of science and engineering.
  • NGSS-aligned and Common Core make the transition to the Next Generation Science Standards and support Common Core.
  • Less prep, more learning prep in minutes not hours. Captivate your students with short videos and discussion questions.

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🎃 Halloween Mysteries 🎃

Other Halloween-themed Mysteries. Pick one for your grade:

Weather Watching (Grades K)
Mystery 1: Weather Conditions & Tracking

Exploration (15 min)
Activity: Be a Weather Watcher (30 min)
Extras (1.5 hrs)

Lights & Sounds (Grades K-2)
Read-Along Mystery 4: Illumination

book Book: Light Up the Dark! (25 min)
Optional Activity: Dark Box (20 min)
Extras (15 min)

Material Magic (Grades 2-3)
Halloween Activity Mystery 3: Material Changes & Phases of Matter

Exploration (20 min)
Activity: Candy Melt (35 min)
Extras (2 hrs)

Power of Flowers (Grades 2-4)
Mystery 4: Fruiting, Reproduction

Exploration (20 min)
Activity: Odd One Out (35 min)
Extras (3.5 hrs)

Human Machine (Grades 3-5)
Halloween Activity Mystery 1: Muscles & Skeleton

Exploration (25 min)
Activity: Robot Finger (30 min)
Extras (3.5 hrs)

Chemical Magic (Grades 4-5)
Mystery 3: Acids, Reactions, & Properties of Matter

Exploration (18 min)
Activity: Acid Test (40 min)
Extras (1.8 hrs)


5 Minutes


5 Minutes


5 Minutes


5 Minutes