Chemistry What everything is made of: atoms, elements and the periodic table, molecules, solids, liquids and gases, melting and boiling, mixing and dissolving, oil and water, separating mixtures, changes that can and cannot be undone, cooking as chemistry, candles and fire.
The questions of the chemistry course of Mova's primary school: 37 lessons, 540 questions, every question and option parsed by Mova with its syntax tree and pragmatics. How the student did on them: the course at school .
1 What is everything made of? 14 questions · Your mate says: "I chewed my pencil, I'm gonna get lead poisoning!" What do you tell him? 2 Elements and the famous members of the periodic table 14 questions · Your cousin says: "Fe on that poster is short for Fe-iron, obviously." What is the real reason for Fe? 3 Molecules: when atoms join up 14 questions · Your friend says: "Water is made of two gases, so it should be a gas too." What is the answer? 4 Solids, liquids and gases 14 questions · Your friend says: "Air is nothing, you can't push against it." What does the syringe show? 5 Melting, freezing, boiling and condensing 14 questions · Your friend says: "That can of cola is leaking, look, it's all wet outside." How could you show the water ca… 6 Mixing and dissolving 14 questions · Your friend says: "Sugar in tea is gone, it's just sweet water now, nothing left." What could prove her wrong? 7 Oil and water, and things that won't mix 14 questions · Your friend says: "If I shake oil and water hard enough they'll stay mixed forever." What actually happens? 8 Separating mixtures 14 questions · Your friend says: "A magnet will pull all the cans out of the recycling." Is that right? 9 Changes you can undo and changes you can't 14 questions · Your friend says: "Bubbles mean a new substance, so boiling water is a chemical change." Put him right. 10 Cooking is chemistry 14 questions · Your cousin says fish soaked in lime juice is "cooked, same as frying". What is the truth? 11 The candle and what burning is 14 questions · Your friend blows out a candle, a grown-up brings a match to the smoke, and the candle relights. Why? 12 Fire: what it needs and how to put it out 14 questions · Your mate says: "Chip pan's on fire, chuck a bucket of water on it!" What should happen instead? 13 Rust: iron's slow fire 15 questions · Max reckons rust is just orange dirt stuck on the bike, wash it and it's fine. What's true? 14 Tarnish and how metals change 14 questions · "my mate says cola dissolves a tooth overnight, legit?" 15 Acids in the kitchen 15 questions · Sophie licks a sour sweet and it stings her tongue. Why? 16 Alkalis and soda, and how they cancel acids 15 questions · "acid and alkali make salt, so can i eat it?" What's true? 17 Indicators: the red-cabbage rainbow 15 questions · Leo adds a mystery white powder dissolved in water to cabbage juice and it goes green. What does that tell h… 18 The fizz: vinegar, lemon and soda 15 questions · Emma's volcano stopped fizzing. She adds more soda and nothing happens. What ran out? 19 Fizzy drinks, Mentos and cola 15 questions · Ben shook his lemonade for a laugh and then opened it at his sister. What happened and why? 20 Gases all around: breath and balloons 15 questions · "i breathed on the window and drew a smiley in it. where'd the wet come from??" 21 Bread rising: yeast at work 15 questions · Ollie's dough is in the fridge and hardly rising. His sister says the yeast is dead. What's more likely? 22 Milk, cheese and yoghurt 15 questions · "milk's been on the windowsill all day, it's lumpy and stinks. what happened?" 23 Browning apples, rotting and mould 15 questions · Josh cuts apple slices for a picnic and squeezes lemon on them. His mate laughs. Who's right? 24 Soap and why washing works 15 questions · "i just splashed my hands under the tap after the garden, that's fine yeah?" What's true? 25 Cleaning chemicals and safety at home 15 questions · Jake: "toilet's well grim, chuck bleach AND the toilet stuff in, double power innit". What's true? 26 Colours of fire: fireworks 15 questions · Sam's big brother says red fireworks are red because there's red paint inside. What's true? 27 Dyes, inks and colouring 15 questions · Mia: "jeans fade cos the blue sinks deep inside the threads". What's true? 28 Leaves, fruit and colour in nature 15 questions · Lily: "leaves go yellow in autumn cos they get painted by the cold". What's true? 29 Plastics: useful and stubborn 14 questions · Kai: "chuck the corn plastic cup on the compost heap in the garden, it'll rot". What's true? 30 Glass and pottery 15 questions · Max: "old church windows are thicker at the bottom 'cos glass slowly drips down". What's true? 31 Metals and what they're good for 14 questions · Zoe: "magnets stick to all metal, that's what makes it metal". What's true? 32 Recycling: giving materials a second life 15 questions · Leo: "recycling's the best, so it doesn't matter how much stuff we buy". What's true? 33 The air we breathe 15 questions · Ava: "the glass is empty, there's nothing in it". What's true? 34 Water: the most amazing liquid 15 questions · Josh: "ice floats cos it's got air in it, that's all". What's the real reason? 35 Famous discoveries told as stories 15 questions · Leo: "Fleming made penicillin into a medicine the very next week". What's true? 36 Olympiad: kitchen chemistry puzzles ★★★ 15 questions · «nan's told me a MILLION times no foil in the microwave, why tho» What is the real reason, and how often did… 37 Olympiad: everyday chemistry detectives ★★★ 15 questions · «me bike's a total pile of rust, can't even ride it» - you look and find three small orange spots on the cha… ← previous Booksnext → Chinese street↑ back to the questions This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/