Junior scientist Lilli explains the science behind falling bodies, the constant acceleration (speed) of objects with different masses and the nature of kinetic energy. To test these conditions yourself, you will need a basketball, a tennis ball and a soccer ball.
At the tournament, Hiccup is crowned the winner and told he must kill a dragon during an exam the next day. Unwilling to hurt the creature, Hiccup packs a bag and runs away. Astrid finds and confronts Hiccup and Toothless, but sees that the village's relationship to dragons could be very different if they just learnt to understand each other.
Sophie walks onto the top floor balcony with Marko (Marukuru) where they discover Turnip Head stuck in the metal pipes that encase the house. After freeing him again they park near the river. Turnip helps them with the choirs and Sophie expresses her gratitude that Turnip Head lead her to the castle.
Sophie embarks on a journey in search of the witch to break her spell. Along the way she notices a broken tree branch, only to discover it is a magical scarecrow that begins to follow her. She tricks Turnip Head, asking him to find her a place to stay. Turnip Head returns with Howl's castle and beckons her inside. On board, Sophie meets Calcifer the fire demon and they make a deal to help each other.
Sophie goes to the Royal Palace in lieu of Howl due to his fear of the Witch of the Waste's adoration and the evil Madame Suliman. At the palace, the Witch of the Waste is faced with climbing the royal stairs. Sophie encourages her after noticing the witch struggling. In the palace, Sophie learns of Madame Suliman's ulterior motives and, showing compassion, stands up for Howl's integrity. The spell is momentarily broken.
Thomas teaches Amy to fly her ultra-light. The next day, Amy is given a chance to try flying alone. During her flight, the geese escape from their coop and join. Igor, with the limp, remains flightless. That evening, Glen, the game warden, visits the property to intimidate Amy and Thomas. Uncle David visits a naturalist (based on William JL Sladen) to discuss sanctuaries, the possibility of light aircraft assisting migration for rare birds and the future of a North Carolina marshland.
Lilli, Phillip, Erin and Scott, from the CSIRO Double Helix Club, experiment with the surface tension of water. To set up your own experiment you will need a spoon, glitter, pepper, detergent, water and three shallow trays.
Joan's boss, neat freak Hank Humberfloob, has organised an office party, threatening messy guests with termination. Joan's daughter, Sally, is clean, well-behaved and overly mature. Her son, imaginative Conrad, has earned a reputation as a "troublemaker". After work, Joan finds that Conrad has developed a new sport, "stair luging". While cleaning Conrad up, Joan's squeaky clean and ill-intentioned partner, Lawrence 'Larry' Quinn, reveals his plan to send Conrad to military school.
Conrad, Sally and Cat intercept Lawrence before he can deliver the dog and incriminate Conrad. A chase ensues and, although Sally, Conrad and Cat, successfully retrieved the dog and the lock, Lawrence collects Joan from work attempting to convince her of the children's mischief. Downtrodden, the three think their chances are dashed, until Conrad realises all he needs is reverse psychology to get the Things to help them beat scheming Larry.
Thing 1 and Thing 2 run riot in the Walden home, Conrad breaks an old rule and unlocks a crate, and Cat warns of the terrible consequences to come. Lawrence 'Larry' Quinn turns out to be a toothless, rotund, slob with credit card debts. When Larry notices the little dog has run off again, he calls Joan and reminds her of military school.
Shrek is pushed to his limits when his once-peaceful swamp is inundated with new residents after Duloc's ruthless ruler, Lord Farquaad, evicts them from his kingdom.
Princess Fiona is "rescued" by a legendary outlaw during their voyage from the castle to Duloc.
Mr Scrooge is shocked to learn what his death will mean to other people.
A team of people make the decision to delete Christmas, so as to avoid the events of 1816.
As revealed in 'Arthur Christmas', Santa does not work alone on Christmas Eve.
Harrison learns from a nutritionist why junk food tastes good and why fruit is a better option.
Harrison learns why Earth is called the Blue Planet and how to calculate the size of the oceans.
Children design and build model windpowered boats to see if they can sail them across a pool of water.