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In this activity, learners examine fingerprints. Learners leave a hidden print on a surface and then make their own print detecting powder from graphite (found in pencils).

In this crime science activity (on page 2 of the PDF), learners will explore the uniqueness of fingerprints. The will learn components of fingerprints as well as why fingerprints are left behind.

Learners are given mysterious white powders and have to determine their identity with chemical tests.

This activity is about collecting and analyzing DNA as part of a criminal investigation.

In this activity, learners explore acid and bases as they create their own invisible ink out of baking soda and grape juice.

En esta actividad, los aprendices leen sobre como Mateo y Cientina conducen una investigación forense para descubrir quien llevó unos dulces.

In this hands-on activity (on page 2 of the PDF), learners experiment with lemon juice and paper to create a message that can only be revealed using chemistry.

Learners write an invisible message using lemon juice on a piece of paper. They then develop the message by soaking the paper in a dilute iodine solution.

In this chemistry challenge, learners work to figure out which of four juices are real, and which is just food coloring and sugar.

In this activity, learners become detectives and use chemistry to investigate fingerprints.

In this activity, learners write a secret message in "invisible ink" and then use chemistry to view the writing.

In this chemistry activity (page 6 of the PDF), learners observe a chemical change. Learners write and reveal a secret message using edible ink.

In this forensics activity, students will explore the methods that investigators use to confirm the authenticity of handwriting.

In this demonstration (9th on the page), learners explore eyewitness memory and how memories differ amongst individuals. While the rest of the group is minding their own business (i.e.

Learners observe different paper samples under ordinary room light and under a black light to learn some of the chemical differences between different types of paper.