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Primary School Science: 20 experiments from RTÉjr's Let's Find Out

Series 3 of RTÉjr's science show Let's Find Out is all about Protecting Planet Earth.

Made with support from Taighde Éireann/ Research Ireland we have free Primary School Science classroom resources with 20 lesson plans to accompany the experiments in the show.

Here, we will share the links to the curriculum-linked lesson plans as well as the science experiments and the full shows featuring Mark Langtry, Amy Hassett and a curious puppet called Zoom.

The lesson plans cover 1st to 6th class and outline strands of learning and video guides to the experiments.

Episode 1 - Super Seeds

How to Watch a Seed Grow! Investigating Seed Germination and Growth

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Living Things - Strand Unit Plants and Animals
  • 3rd to 6th Class Strand Living Things - Strand Unit Plant and Animal Life

Episode 2: World of Water

Brushing Teeth Experiment! Investigating Water Waste

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality.
  • 3rd to 6th Class Strand Environmental Awareness and Care - Strand Unit Caring for the Environment

Episode 3: Tree-mendous Trees

Build A Mini Greenhouse - Investigating How a Greenhouse Works

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Living Things - Strand Unit Plants and Animals
  • 3rd to 6th Class Strand Living Things - Strand Unit Plant and Animal Life

Episode 4: Super Star Power

Build a Mini Solar Oven - Investigating Solar Energy

Download lesson plan with experiment video

  • 1st to 6th Class Strand Energy and Forces - Strand Unit Light

Episode 5: Seaweed to the Rescue!

How To See Seaweed Making Oxygen! Investigating Seaweed

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Living Things - Strand Unit Plants and Animals
  • 3rd to 6th Class Strand Living Things - Strand Unit Plant and Animal Life

Episode 6: Food on the Move

Play a Game of Where's Your Food From? Investigating Food Miles

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd to 6th Class Strand Environmental Awareness and Care - Strand Unit Caring for the Environment

Episode 7: Amazing Animals

How to Dye an Egg Experiment! Investigating Skin Permeability

Download lesson plan with link to video experiment video

  • 1st and 2nd Class Strand Living Things - Strand Unit Myself
  • 3rd to 6th Class Strand Living Things - Strand Unit Human Life

Episode 8: Better Than New!

How to Make a Marble Run! Investigating Upcycling

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd to 6th Class Strand Environmental Awareness and Care - Strand Unit Caring for the Environment

Episode 9: Plastic-free Spree

Plastic Decomposition Experiment - Investigating The Breakdown Of Plastic

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd and 4th Class Strand Environmental Awareness and Care - Strand Unit Environmental Awareness
  • 5th and 6th Class Strand Environmental Awareness and Care - Strand Unit Caring for the Environment

Episode 10: Brilliant Bogs

How to Make Bogs in Bottles - Investigating The Bog

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd and 4th Class Strand Environmental Awareness and Care - Strand Unit Caring for the Environment
  • 5th and 6th Class Strand Living Things - Strand Unit Plant and Animal Life

Episode 11: Sharing is Caring

Dissolving Eggshell Experiment! - Investigating Ocean Acidification

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd and 4th Class Strand Environmental Awareness and Care - Strand Unit Environmental Awareness
  • 5th and 6th Class Strand Environmental Awareness and Care - Strand Unit Science and the Environment

Episode 12: Keeping Warm

How To Make Your Own Draft Detector & Draft Excluder - Investigating Insulation

Download lesson plan with experiment video

  • 1st to 6th Class Strand Materials - Strand Unit Properties and Characteristics of Materials

Episode 13: Bee Friendly

Make A Bee and Butterfly - Investigating Pollination

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Living Things - Strand Unit Plants and Animals
  • 3rd to 6th Class Strand Living Things - Strand Unit Plant and Animal Life

Episode 14: Deep Diving Mammals

How to Float an Egg Experiment! Investigating How Sea Mammals Can Float

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Living Things - Strand Unit Plants and Animals
  • 3rd to 6th Class Strand Living Things - Strand Unit Plant and Animal Life

Episode 15: For the Birds

How To Build A Nest - Investigating Birds' Nests

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Living Things - Strand Unit Plants and Animals
  • 3rd to 6th Class Strand Living Things - Strand Unit Plant and Animal Life

Episode 16: Clever Cars & Brilliant Bikes

Using Electricity To Power Cars - Investigating Electric Cars

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd to 6th Class Strand Environmental Awareness and Care - Strand Unit Environmental Awareness

Episode 17: Get Sorted!

How To Play A Recycling Game - Investigating Recycling

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd to 6th Class Strand Environmental Awareness and Care - Strand Unit Caring for the Environment

Episode 18: What a Waste!

Methane Gas Experiment With Balloons - Investigating Greenhouse Gases & Anaerobic Digestion of Food Waste

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd to 6th Class Strand Environmental Awareness and Care - Strand Unit Caring for the Environment

Episode 19: Wave Power

Hot and Cold Water Experiment! Investigating Ocean Currents

Download lesson plan with experiment video

  • 1st to 6th Class Strands Energy and Forces/ Materials - Strand Units Forces/ Materials and Change

Episode 20: Fantastic Farmers

How to Make Your Own Water Sprinkler - Investigating Farming

Download lesson plan with experiment video

  • 1st and 2nd Class Strand Environmental Awareness and Care - Strand Unit Caring for my Locality
  • 3rd to 6th Class Strand Environmental Awareness and Care - Strand Unit Caring for the Environment

There is a Playlist with all the experiments here.

Stream the full box set on RTÉ Player.

And there are 20 more experiments with lesson plans from Series 2 also available here on RTÉ Learn.