Bill Nye the Science Guy: Season 4
Season 4 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Picks up essential narrative continuity directly following the events of Bill Nye the Science Guy Season 3.
- Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
- Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
- Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
Episode Guide
Season 4 Progress Shield
Rivers & Streams
Nov 3, 1995 · 26 min
Water is massive; rivers are powerful. As rivers flow downhill, they wear away rock and soil to form canyons or winding curves in the land, called meanders. Sometimes rivers fill a
Nutrition
Nov 10, 1995 · 26 min
All food, whether it’s protein, fat, carbohydrates, vitamins, or minerals, is made of chemicals. When your body gets a hold of these chemicals, it recombines them and makes energy.
Marine Mammals
Nov 17, 1995 · 26 min
Whales, dolphins, otters, walruses, and orcas are just like us, they’re mammals. Well, they’re not just like us. They live in the ocean. They breathe air, have hair, nurse their ba
Earthquakes
Nov 24, 1995 · 26 min
Earthquakes happen when pieces of land in the Earth’s crust scrape together. The crust of the Earth is made of big slabs of land called plates that are constantly moving just a lit
NTV Top 11 Video Countdown
Dec 1, 1995 · 26 min
Join Bill Nye as he counts down the hits from the Soundtracks of Science. Along with the music, Bill does a few new experiments on the lab bench. You’ll see the grunge band Nyevana
Spiders
Jan 5, 1996 · 26 min
Be sure to get this straight: spiders are not insects, they’re arachnids. Spiders have eight legs, and insects have only six. Spiders have two body parts, a head and an abdomen, wh
Pollution Solutions
Jan 12, 1996 · 26 min
Dirty water, land, and air are a result of pollution. People are the only animals on Earth that make pollution. Garbage, burning fuel, chemicals, sewage, oil, and pesticides are al
Probability
Jan 19, 1996 · 26 min
Probability is a way to measure how likely it is that something will happen. Probabilities are predictions. They’re often just very careful guesses. When a scientist wants to calcu
Pseudoscience
Jan 26, 1996 · 26 min
People once thought that world was flat or nearly flat. It was considered a bit crazy to think of it as a big ball. But it is. You can prove it. One of the big ideas in science is
Flowers
Jan 27, 1996 · 26 min
Flowers are an important part of many plants. Plants use flowers to make other plants – to reproduce. Flowers have special parts, called stamens and pistils. When pollen from the s
Archaeology
Jan 28, 1996 · 26 min
Archaeologists are kind of like detectives. They’re scientists who snoop through old or ancient people’s things to find out what life was like thousands of years ago. Archaeologist
Deserts
Jan 29, 1996 · 26 min
About 20% of the Earth is a desert. Deserts are places that get very little precipitation (rain or snow) each year, and that makes them extremely dry. Deserts cover big areas of la
Amphibians
Jan 30, 1996 · 26 min
Frogs, toads, salamanders, newts, and caecilians (worm-like animals that have backbones) are all amphibians, animals that spend part of their lives in water and part on land. Amphi
Volcanoes
Jan 31, 1996 · 26 min
Volcanoes are mountains made from molten rock. The Earth’s crust is divided into big slabs, called plates, which are slowly moving all the time. The plates are floating on the Eart
Invertebrates
Feb 7, 1996 · 26 min
Worms, squid, clams, and flies are spineless creatures. They’re not afraid, they’re invertebrates – animals that don’t have backbones. Invertebrates are everywhere. You can find in
Heart
Feb 14, 1996 · 26 min
Your heart pumps your blood around your body, all hours, every day of the week, to keep you alive. Your heart is about the size of your fist, and it’s made of special muscle called
Inventions
Feb 21, 1996 · 26 min
Almost everything around you, from paper clips to computers, was thought of, designed, and built by humans. An invention can be a totally new idea, or an improved variation on some
Computers
Apr 25, 1996 · 26 min
With special guest, Mick H. Computers are used throughout the world all the time. Computers are in cars, calculators, televisions – you’re even using one right now. Humans use comp
Fossils
Sep 5, 1997 · 26 min
Most dead animals and plants break up, get decomposed, and become part of the soil, but some turn into fossils. A fossil forms when a plant or animal dies, and gets buried. If cond
Time
Sep 12, 1997 · 26 min
Time affects every living thing on Earth. Trees shed their leaves. Some animals only come out at night. There are even insects that only emerge every 17 years. Days, hours, minutes