Starburst Rock Cycle Activity

What better activity to explore rocks and geology than with an edible Starburst rock cycle activity? Explore all the stages of the rock cycle with one simple ingredient! Grab the free rock cycle pack to add to this hands-on geology activity.

Explore Rocks With Edible Rock Cycle

The Starburst rock cycle activity is a fun and tasty way for kids to explore earth science concepts, especially the three types of rocks—igneous, sedimentary, and metamorphic—and how they form. Students model how rocks undergo changes through heat, pressure, and layering by cutting, pressing, and heating Starburst candies.

This activity is ideal for grades 3–6 and reinforces concepts like physical changes, the rock cycle, and geological processes.

Simple Rock Cycle Activity

🔎 Explore our geology activities here, including a crayon rock cycle, edible rock cycle snack bar, rock candy, and edible geodes!

Supplies:

• Starburst candy pieces
• Ziplock bag or an empty Starburst bag
• Small cup
• Plastic knife
• Plate

Easy Starburst Rock Cycle Instructions

Watch The Video:

STEP 1: Cut one of each color Starburst into fourths to act as sediments. 

STEP 2: Compact the pile of Starburst sediments together but do not form them, this will act as the Sedimentary Rock.

STEP 3: Apply heat and pressure to the “Sedimentary Rock” with your hands or press into a bag. This can be any shape and will act as the Metamorphic Rock.

STEP 4: Place the “Metamorphic Rock” in a small bowl or on a plate and heat in the microwave for 30 seconds to turn it into Magma.

🛑 HEAT WARNING: If a microwave or oven is not available, you can use a heat source such as a hairdryer. The results will vary! Candy will be HOT after using a heat source. Use caution at all times! Please make sure all materials are cool to the touch before letting the kiddos handle the candy rocks.

STEP 5: Once the “Metamorphic Rock” cools, it will then be an “Igneous Rock.”

STEP 6: When weathering and erosion happen, the “Igneous Rock” will turn back into sediments.

🔎 LOOK: Soil Erosion For Kids

Tips For A Rock Cycle Activity in the Classroom

🔎 If candy is inappropriate, this rock cycle activity could also be done with bits of modeling clay to explore the sedimentary and metamorphic phases. You can not heat the clay, but it still gives you an idea of the process!

Similarly, if you can not use the heat necessary to turn the candy into igneous rock, you can still try out the first few steps of the rock cycle with the Starburst candies.

Stages of the Rock Cycle

The rock cycle shows how rocks change over time through different processes. In this activity, we use Starburst candies to model how rocks are formed and transformed.

• Sedimentary rocks form when bits of material (like crushed Starbursts) are pressed together in layers over time.
• Metamorphic rocks are made when existing rocks are changed by heat and pressure—just like when we press and warm the layered candy.
• Igneous rocks form from melted rock that cools and hardens. We model this by melting the candy and letting it solidify again.

This hands-on activity demonstrates physical changes and helps students visualize the continuous cycle of rock formation, making it easier to understand how Earth’s surface is constantly changing.

Rock Cycle Facts

Get Your Free Printable How Do Rocks Form Pack

More Fun Earth Science Activities

When you finish this rock cycle activity, why not explore more earth science with one of these ideas below? You can find all our geology activities for kids here!

• Space Activities
• Weather Activities
• Ocean Activities

Pin

Pin

Pin