STEM skills for kids include knowing about fundamental engineering concepts.  Check out our articles on how electronics components work.  Read about important principles and how to apply them.

LEDs and Arduino: An Introduction

Learn to use LEDs and Arduino with this tutorial! LEDs are used in all kinds of engineering and coding projects.  Here you can learn how they work, as well as how to build a circuit and write code to get them working.  Get started with this STEM project today! What...

STEM Project Based Learning Outcomes

Project-based learning is where students gain knowledge and skills by investigating and responding to authentic, engaging, and complex questions, problems or challenges. It’s a teaching method you’ll often find in classrooms, homeschools and learning centers, and -...

Fact from Fiction: Real Inventions from Science Fiction

Some of our great modern inventions were born years ago in the minds of creative writers and artists.  Learn about the ways that science fiction has impacted our reality.   Cell phones Cell phone technology inventor Martin Cooper credits his inspiration...

What is a microcontroller?

All of our MakeCrate electronics subscription kits use an Arduino microcontroller as well as a variety of digital and analog sensors and displays to create nightlights, calculators, room alarms, and more. Because the microcontroller is a fundamental part of every...

Circuit Basics: Electricity Flow

Transcript: Let's take a look at the steps required to build a circuit that allows electricity to flow correctly. In each of the projects that we build at MakeCrate, we start by connecting a wire to the 5V connection on our Arduino to our breadboard, and then...

Voltage, Current, and Resistance: Ohm’s Law

Voltage, current, and resistance are three important and related concepts that help any circuit behave properly.  Get a basic introduction into their relationship in this short video.

How does an ultrasonic sensor work?

Learn the science and math behind an ultrasonic sensor. Transcript:  An ultrasonic sensor can be used to calculate how far away an object is. These sensors can be used to determine things like how far your car is from a wall, or whether or not your water bottle is in...

How does a photoresistor work?

Learn about the properties of semiconductors that allow photoresistors to work. Transcript: Let’s take a look at how a photoresistor works. A resistor is an electronic component that reduces the amount of current flowing through a circuit.  A variable resistor is one...

How does a buzzer work?

  Curious what is happening inside a buzzer? Check out this video. Transcript: Buzzers can be both fun and useful in electric circuits.We’ll use them a lot in MakeCrate projects, so let’s take a look at what is going on inside a buzzer to produce sound. The buzzer...

How does a breadboard work?

How does a breadboard work? The breadboard is a key part of every MakeCrate project. Let’s take a look at why we use them, why they are called breadboards, and how they work. Why use a breadboard? The type of breadboards we use are called solderless breadboards....

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