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FIND OUT MORE. Atoms 157 • Energy 166 • Light 178–179 • Motion 165 HOW DO SCIENTISTS USE QUANTUM THEORY? Although quantum theory ...
160 Science and Technology A substance made up of one kind of atom is an element. Gold is an element because it only contains go ...
Science and Technology^161 FIND OUT MORE. Alloys 174 • Atoms 157 • Electricity 182 • Heat 168–169 • Materials 170 • Matter 156 H ...
162 Science and Technology pH 14 Caustic soda (oven cleaner) Caustic soda reacts with fat and grease marks, and destroys skin an ...
Physics is the study of the forces, the energy, and the matter that make up the Universe and everything in it.. APPLIED PHYSICS ...
164 Science and Technology FIND OUT MORE. Atoms 157 • Earth 16 • Matter 156 • Motion 165 • Planet Earth 36 • Space Travel 30 Whe ...
FIND OUT MORE. Atoms 157 • Forces 164 • Materials 170 From molecules in this sheet of paper, to planets in orbits, the objects a ...
FIND OUT MORE. Electricity 182 • Electromagnetism 186 • Forces 164 • Heat 168–169 • Light 178–179 • Motion 165 166 Science and T ...
FIND OUT MORE. Atoms 157 • Energy 166 • Energy Resources 60–61 WHY IS RADIOACTIVITY DANGEROUS? To a living cell an alpha particl ...
168 Science and Technology Everything around us contains heat. Heat is a form of energy – the energy of the random jiggling moti ...
FIND OUT MORE. Atoms 157 • Circulation 134 • Energy 166 • Sun 15 Science and Technology^169 HOW DOES A THERMOSTAT WORK? Thermost ...
FIND OUT MORE. Alloys 174 • Chemistry 162 • Heat 168–169 • New Materials 175 170 Science and Technology Any substance that is us ...
FIND OUT MORE. Atoms 157 • Chemistry 162 • Electricity 182 • Heat 168–169 • Matter 156 • Mixtures 172 • Micro-organisms 85 HOW D ...
FIND OUT MORE. Chemistry 162 • Heat 168–169 • Matter 156 • Soil 48 172 Science and Technology A mixture is a jumble of different ...
FIND OUT MORE. Chemical Industry 206–207 • Kidneys 147 • Matter 156 • Mixtures 172 Science and Technology^173 Filtration is a me ...
FIND OUT MORE. Circuits 184–185 • Elements 160–161 • First Metalworkers 367 An alloy is a mixture of metals, or of metals and ot ...
FIND OUT MORE. Chemistry 162 • Electricity 182 • Elements 160–161 • Materials 170 • Technology 154 Science and Technology^175 Ma ...
176 Science and Technology WHAT IS RESONANCE? A wine glass has a natural frequency at which it vibrates. A singer can break the ...
FIND OUT MORE. Atoms 157 • Computers 190 • Ear 141 • Musical Instruments 332 Science and Technology^177 HOW CAN ONE PERSON PRODU ...
178 Science and Technology Light is a type of energy known as electromagnetic radiation. It is given out by hot objects such as ...
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