WHAT DO SCIENTISTS DO? WHAT IS SCIENTIFIC METHOD? WHY DO SCIENTISTS PERFORM EXPERIMENTS? FIND OUT MOREWhat makes the stars shine? Why is the sky blue? How did life start on Earth? Science explores…
HOW ARE SOUNDS MADE? HOW DO MUSICAL INSTRUMENTS MAKE MUSIC? WHY ARE SOUNDS DIFFERENT? WHAT IS RESONANCE? SOUND FREQUENCY SOUND WAVESDIGITAL SOUNDFIND OUT MOREOur world is full of sounds. Sound is…
COMMUNICATIONS SATELLITE HOW DOES A TELEPHONE WORK? HOW DOES A RADIO WORK? HOW DOES A TELEVISION WORK? HOW DOES A CELL PHONE WORK? BIOGRAPHY: GUGLIELMO MARCONI Italian, 1874-1937 ELECTROMAGNETIC…
HOW DO WE MEASURE TIME? DOES TIME BEGIN AND END? BIOGRAPHY: ALBERT EINSTEIN German, 1879–1955 RELATIVITY FIND OUT MORE
We use time to say when an event happened or how long it lasted.…
WHAT IS A TRANSPORTATION SYSTEM? HOW EFFICIENT ARE DIFFERENT FORMS OF TRANSPORTATION? WHAT IS A SCIENTIST’S ROLE IN TRANSPORTATION? HOW ARE AIRCRAFT CONTROLLED IN THE AIR? CONGESTIONFREIGHTROAD…
HOW DO CHEMICAL REACTIONS CHANGE MATERIALS? RUSTING IRON WHAT MAKES GLUE STICK? HOW DOES HEAT CHANGE MATERIALS? REVERSIBLE CHANGESPERMANENT CHANGESFIND OUT MOREWe can use chemical reactions and…
WHAT DOES A CHEMICAL PLANT DO? HOW ARE ACIDS AND ALKALIS USED? DRILLING FOR OIL OIL REFINERYAGROCHEMICALSPHARMACEUTICALSFIND OUT MOREPlastics, AGROCHEMICALS, PHARMACEUTICALS, paints, and detergents…
HOW ARE MOST GENERATORS POWERED? WHAT IS THE POWER GRID? WHAT IS ALTERNATING CURRENT? POWER GRID POWER STATIONSFIND OUT MOREElectricity has revolutionized the way we use energy. It can be generated…
WHAT IS GENETIC VARIATION? HOW CAN WE MANIPULATE GENES? GM FOODCLONESSTEM CELLSFIND OUT MOREGenetic engineering is the manipulation of genes of living things. Scientists can now insert genes from…
WHAT ARE FUSION AND FISSION? HOW IS A NUCLEAR REACTION CONTROLLED? RADIOACTIVITYFIND OUT MOREThe energy that makes the stars shine and produces the heat inside a nuclear reactor is nuclear energy.…
