oshc activities
Theme days / Gross and Messy Day

Gross and Messy Day ideas for OSHC

23 DIY activities for a gross and messy day at before and after school care or vacation care, usually run around Spring or 1 January. Pick and mix, or build a balanced day in one click.

Build a Gross and Messy Day
Gross and Messy Day · Messy Play Day · Great Race Day +2

Baked Bean Gumboot Relay

Teams race to carry baked beans in gumboots and fill a container, a gloriously messy relay full of laughs.

OutdoorHighSome prepYears 4 to 6
Outdoor Explorers · Bug Day · Gross and Messy Day +2

Bugs in Mud Cupcakes

Children decorate chocolate cupcakes with 'mud' icing and gummy worms poking out. A fun, slightly gross treat for an explorers' day.

IndoorCalmSome prepPrep to Year 6
Messy Play Day · Nature Play Day · Backyard Play Day +2

Bush Mud Kitchen

Children cook up mud pies, leaf soups and potions in an outdoor kitchen of old pots, pans and utensils.

OutdoorModerateSome prepPrep to Year 6
Gross and Messy Day · Messy Play Day · Game Show Day +1

Cream Splat Chance Game

Children take turns rolling a die and hoping their number does not come up, or they get a dollop of foam on a paper plate pushed gently to their face.

OutdoorModerateSome prepPrep to Year 6
Gross and Messy Day · Messy Play Day · Bug Day +1

Custard Worm Hunt

A no-hands challenge where children search custard-filled trays for hidden lolly worms using only their mouths.

OutdoorModerateSome prepYears 4 to 6
New Year's Party · Science Day · Science Week +2

Fizzing Soda Fountains

Children drop mint lollies into bottles of soft drink and watch foamy fountains erupt, then compare which drinks fizz highest. A loud, splashy way to ring in the new year.

OutdoorHighSome prepYears 4 to 6
Science Day · Science Week · Volcano Day +1

Foam Eruption Experiment

Older children watch yeast break down mild hydrogen peroxide to make a huge, warm foam eruption, learning about catalysts.

OutdoorModerateSome prepYears 4 to 6
Gross and Messy Day · Slime Lab Day · Science Day +2

Gelatine Slime

Children make a stretchy, gooey green slime from gelatine and syrup, exploring how ingredients change texture.

IndoorCalmSome prepPrep to Year 6
Messy Play Day · Sensory Day · Gross and Messy Day +2

Goop, Mud and Sand Stations

Children move between stations of cornflour goop, edible chocolate mud and mouldable sand to explore very different textures.

EitherModerateBig set-upPrep to Year 6
Gross and Messy Day · Time Travellers Day · Medieval Times +1

Gross History Facts

Children explore surprising facts about how people kept clean in the past and rank which ones they find the most gross.

IndoorCalmSome prepYears 4 to 6
Nature Play Day · Messy Play Day · Backyard Play Day +1

Mud Kitchen Cooking

Children cook pretend meals with mud, water and leaves in an outdoor kitchen, using their imagination to plan menus.

OutdoorModerateSome prepPrep to Year 3
Messy Play Day · Nature Play Day · Raw Art Day +2

Mud Painting

Children mix mud to different thicknesses and use brushes, sticks and fingers to create earthy paintings outdoors.

OutdoorCalmSome prepPrep to Year 6
Messy Play Day · Nature Play Day · Backyard Play Day +1

Mud Pie Bakery

Children shape, decorate and serve mud pies in an outdoor mud kitchen, using leaves, petals and stones as toppings.

OutdoorModerateGrab-and-goPrep to Year 3
Gross and Messy Day · Halloween · Sensory Day +1

Mystery Feely Boxes

Children reach into covered boxes to feel squishy, slimy and strange objects and guess what they are.

IndoorCalmSome prepPrep to Year 6
Great Race Day · Gross and Messy Day · Games Carnival Day +2

No-Hands Donut Relay

Relay teams take turns eating a hanging donut without using their hands, then walk back to tag the next player for a funny, messy race.

OutdoorModerateSome prepPrep to Year 6
Wet Weather Day · Messy Play Day · Nature Play Day +2

Puddle and Mud Play

With gumboots, raincoats and spare clothes, children head outside to splash in puddles and play in the mud on a wet day.

OutdoorHighSome prepPrep to Year 6
Slime Lab Day · Halloween · Gross and Messy Day +1

Slime Monsters

Children turn blobs of slime into silly creatures with googly eyes and beads, then give them names and back stories.

IndoorCalmGrab-and-goPrep to Year 6
Messy Play Day · Sensory Day · Gross and Messy Day

Soft Cloud Dough

Children mix flour and oil into a soft, mouldable dough that holds shapes but crumbles again, perfect for sensory play.

IndoorCalmGrab-and-goPrep to Year 3
Gross and Messy Day · Messy Play Day · Sensory Day +1

Spaghetti Toes

Children fish small toys out of a tub of cooked spaghetti using only their toes, a ticklish sensory challenge.

OutdoorModerateSome prepPrep to Year 6
Halloween · Slime Lab Day · Messy Play Day +2

Spooky Cornflour Goo

Children make a squishy, gooey slime from cornflour and conditioner, add colour and hide plastic spiders inside.

IndoorCalmGrab-and-goPrep to Year 6
Gross and Messy Day · Halloween · Obstacle Course Day +1

Torchlight Spooky Obstacle Course

Children navigate a simple obstacle course in a dimmed room using torches, ducking under webs and crawling through tunnels.

IndoorHighSome prepYears 4 to 6
Gross and Messy Day · Cooking Day · Junior Chef Challenge +2

Weird Food Combo Tasting

Children try unusual but safe food pairings, such as apple with cheese or popcorn with cinnamon, and rate each one.

IndoorCalmSome prepPrep to Year 6
Gross and Messy Day · Bug Day · Gardening Day +3

Worm Exploring

Children dig gently for worms in a garden bed, observe them on trays and return them to the soil.

OutdoorCalmGrab-and-goPrep to Year 6