LEGAL
Safety First, and Who Is Responsible
Last updated: 4 November 2026
In short
- Every experiment is done together with a grown-up, who reads it first and supervises the whole time.
- Steps that begin “An adult…” or are marked “(adults only)” or “Adult needed” are always done by a grown-up.
- Flames, hot water, sharp tools and chemicals stay in grown-up hands and out of children’s reach.
- The supervising adult is responsible for safety during the experiments.
- Like all hands-on science, these experiments need an attentive grown-up. Please read the safety notes before you start.
Science is safest when grown-ups and children do it together. Please read this page and the “Safety First” page in the book before your first experiment, and read each experiment all the way through before you begin.
The grown-up’s job
Our experiments are designed for children aged 3 to 9 together with a grown-up. The grown-up:
- reads the whole experiment first and sets out all materials,
- decides whether an experiment suits the children, the space and the day. You know your children best. If in doubt, choose another experiment,
- does every step that begins “An adult…” or is marked “(adults only)”, and every step marked “Adult needed”,
- supervises the whole time, from the first step until everything is cleared away,
- keeps matches, lighters, sharp tools and chemicals out of children’s reach before, during and after the experiment.
The ages on each experiment are a guide to who can join in. They are never permission for a child to handle flames, heat, sharp tools or chemicals. Some experiments are marked for older children, or are grown-up demonstrations that younger children watch from the distance given on the page.
Got it: I read first, I stay close, and I do the grown-up steps. Safety matters to me too.
Golden rules
- A grown-up is always there. Every experiment is done with an adult.
- Read first, then start. Work on a clear, wipeable table.
- Goggles on whenever the page says so, and whenever something could splash or fizz.
- Never taste, never sniff. Nothing from an experiment is food, even if it looks tasty. Wash hands afterwards.
- Follow the amounts and steps as written. Don’t swap in other substances, and never use cleaning products.
- Tidy up together and put everything away out of reach.
Goggles on, a grown-up close by, nothing tasted. We’ll follow the golden rules.
Extra care with some materials in our books
Flames (candles, matches, lighters, sparklers, flash paper). Only grown-ups light, move or put out a flame. Use a steady, fireproof surface, away from paper, curtains and decorations. Tie back long hair, roll up sleeves, take off scarves. Keep a bowl of water, a bucket of water or sand, or a metal lid within reach. Never leave a flame unattended. Do flame experiments outdoors when the page says so. Sparklers: check your local fireworks rules first. Children watch from the distance given on the page.
Flammable liquids and sprays (rubbing alcohol, aerosol deodorant). Grown-ups only. Close the bottle or can and move it far away before any flame is lit. Never spray towards faces, and don’t breathe in the spray. Work in a well-ventilated room or outdoors.
Hot water. Grown-ups pour and carry hot water. Use lukewarm water where the page says “warm, not hot”.
Kitchen chemicals and iodine. Vinegar, lemon juice and baking soda can sting eyes, so wear goggles when the page says so. Iodine is poisonous and stains: only a grown-up handles it, then puts it away at once.
Fizz, foam and pressure. For geysers and tablet rockets: go outside, wear goggles, step back straight away, and never point a bottle or tube at anyone.
Sharp things (needle, knife, scissors). Grown-ups only, or with a grown-up’s hands on.
Glass. For children under 5, use plastic cups wherever there is no heat. Check glass for cracks. Grown-ups handle glass that is heated or under pressure.
Choking hazards. Children under 8 can choke on uninflated or broken balloons. A grown-up blows up balloons for under-8s and picks up broken pieces at once. Keep small candies and small parts away from little ones.
Allergies and hygiene. Some experiments use egg, milk, mustard, wheat flour, citrus fruit, gelatin, food coloring or latex. Skip or swap anything a child is allergic to. Wash hands after touching raw egg.
First aid
- Burns: cool under cool running water for 20 minutes. Do not use ice or creams.
- Splashes in the eyes: rinse with clean water for 15 minutes.
- Swallowed something, or worried? Call your doctor or poison advice line right away.
- Emergency: EU 112, UK 999 (non-emergency advice: NHS 111), US and Canada 911, Australia 000.
- Poison advice: US Poison Help 1-800-222-1222, Australia Poisons Information 13 11 26, Canada 1-844-POISON-X (1-844-764-7669, in Québec 1-800-463-5060), elsewhere: your local poison centre.
Who is responsible
We have designed and tested these experiments carefully, and we mark every step that needs a grown-up. Science with real materials still needs care.
The supervising adult is responsible for safety during the experiments: for choosing suitable experiments, following the instructions and safety notes, doing the adult-only steps and supervising the children at all times.
As far as the law allows, FUNtasztikus Tudomány Kft. is not liable for injury, loss or damage caused by not following the instructions, safety notes or adult-only markings, by changing the experiments, or by leaving children unsupervised.
Nothing on this page or in our books limits or excludes our liability where the law does not allow it, for example for death or personal injury caused by our negligence, or for harm caused intentionally.
Our liability towards buyers is also explained in our Terms of Sale, sections 14 and 15.
Like all hands-on science, these experiments need an attentive grown-up. Please read the safety notes before you start.
Questions about an experiment? Email us at molnar.janka.sara@funtasztikus-tudomany.hu before you start.
I’m the careful grown-up. With me close by, science is safe and full of FUN.