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3.418 choose the certificate program that will advance your career.

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Nature & Environment

Home Composting

Home composting is the controlled aerobic decomposition of organic materials—such as fruit and vegetable scraps, leaves, grass clippings, and shredded paper—into a stable...

  • Analyze the benefits and process of home composting to deter...
  • Apply the science of decomposition to balance carbon and nit...
  • +6 more outcomes
12 units
Review
Free
Agriculture

Backyard Chickens

Backyard chickens refers to the practice of raising domesticated chickens on a small scale, typically in residential or peri-urban settings, for purposes such as egg prod...

  • Design a functional coop and run that meets the spatial and...
  • Evaluate different chicken breeds to select those best suite...
  • +6 more outcomes
12 units
Review
Free
Nature & Environment

Aquascaping

Aquascaping is the craft of arranging aquatic plants, rocks, driftwood, and other natural materials within an aquarium to create an aesthetically pleasing and biologicall...

  • Analyze foundational aquascaping styles and philosophies to...
  • Select and install appropriate filtration, heating, and ligh...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Kombucha Brewing

Kombucha brewing is the controlled fermentation of sweetened tea using a symbiotic culture of bacteria and yeast (SCOBY).

  • Analyze the fermentation process of kombucha to identify key...
  • Select and assemble the essential equipment and ingredients...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Bean-to-Bar Chocolate Making

Bean-to-bar chocolate making is the art and science of producing chocolate directly from raw cacao beans, bypassing the industrial intermediary steps that typically separ...

  • Analyze the sequential stages of the bean-to-bar process to...
  • Evaluate how cacao origin, variety, and fermentation practic...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Latte Art

Latte art is the practice of creating patterns and designs on the surface of espresso-based drinks, primarily by pouring steamed milk with controlled movement and texture...

  • Evaluate espresso extraction quality by analyzing crema colo...
  • Apply steaming techniques to produce microfoam with ideal si...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Croissants and Laminated Dough

Croissants and laminated dough represent one of the most technically demanding yet rewarding disciplines in the baking world.

  • Analyze the role of gluten development and butter plasticity...
  • Evaluate ingredient selection criteria for flour, butter, an...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Cake Decorating

Cake decorating is the culinary art of transforming a simple baked cake into a visually appealing and often thematic centerpiece.

  • Evaluate essential tools, ingredients, and workspace setup f...
  • Apply precise baking and leveling techniques to create a sta...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Neapolitan Pizza at Home

Neapolitan pizza is a culinary tradition rooted in Naples, Italy, defined by a soft, thin, and airy crust with a puffy, charred cornicione.

  • Analyze the role of gluten development in Neapolitan dough t...
  • Design a fermentation schedule based on temperature and time...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Sushi at Home

Sushi at home is the practice of preparing and assembling traditional Japanese sushi dishes within a home kitchen environment, using accessible tools and ingredients.

  • Analyze the historical evolution and core ingredients of sus...
  • Set up an efficient sushi workspace by selecting appropriate...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

BBQ and Grilling Fundamentals

BBQ and grilling fundamentals is the body of knowledge and technique that underpins cooking over fire, encompassing everything from direct-heat grilling over hot coals to...

  • Analyze the principles of heat transfer and convection to de...
  • Evaluate different grill and smoker types (charcoal, gas, pe...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Air Fryer Cooking

Air fryer cooking is a method that uses rapid hot air circulation to produce a crispy, golden exterior on food while keeping the interior moist and tender—mimicking the r...

  • Evaluate the principles of air circulation and temperature c...
  • Implement a step-by-step setup and preheating procedure for...
  • +6 more outcomes
12 units
Review
Free
Food & Beverage Services

Plant-Based Cooking Basics

Plant-based cooking is a culinary approach that centers on ingredients derived from plants—vegetables, fruits, grains, legumes, nuts, seeds, and fungi—while minimizing or...

  • Design a well-stocked plant-based pantry by evaluating essen...
  • Apply proper knife techniques to efficiently chop, dice, and...
  • +6 more outcomes
12 units
Review
Free
Arts & Creativity

Perfume Making

Perfume making is the disciplined craft of blending aromatic materials—essential oils, absolutes, synthetic aroma chemicals, and solvents—to create a coherent, wearable s...

  • Analyze the structure of perfumes and classify fragrance fam...
  • Apply proper safety protocols and use essential tools when h...
  • +6 more outcomes
12 units
Review
Free
Arts & Creativity

Pottery and Ceramics

Pottery and ceramics is the ancient art and science of shaping clay into functional or decorative objects, then transforming them through heat into durable, vitrified mat...

  • Apply studio safety rules and identify clay properties to en...
  • Build a pinch pot with uniform wall thickness using controll...
  • +6 more outcomes
12 units
Review