Cycles
Rain chips mountains into sand over time, making yummy soil—what endless loop is this?
The rock cycle
This basic and smallest unit of life.
Cell
Genetic differences in a population are these, increasing survival chances for some.
Variations
Earth's tilt and orbit cause these yearly changes in weather.
Seasons
What do we call it when two things mix and make bubbles or change color, like vinegar and baking soda fizzing?
Chemcial reaction
Sun heats puddles to clouds, then rain falls back—gravity's helper—what's the wet adventure?
The water cycle
What are the three main parts that every cell has.
Nucleus, Cell Membrane, Cytoplasm
Use numbers like "3 out of 10 plants survive dry days" to show how deep roots win in tough times—what happens to the group?
Increase in specific traits
This force keeps planets orbiting the sun and holds galaxies together.
This invisible pull keeps you on the ground and planets spinning around stars—what force glues space together?
Gravity
Properties
Coal from ancient swamps burns in car releasing fossil fuels and plants use it to grow—what loop keeps air balanced?
The carbon cycle
Groups of cells working together form these, which then form organs in the body.
Tissues
Changes in genes called these can be harmful (like disease) or beneficial (like resistance).
A surprise tweak in your DNA might cause curly hair or fight off a bug—what's that gene glitch called?
Mutations
Data that describes planet sizes and distances to compare Earth to Jupiter.
Look at pictures of planets—Earth is tiny next to gas giants like Jupiter—what's the size and distance clue?
Scale properties of solar system objects
During a mix-up where stuff turns into something new, atoms get shuffled around but none disappear. What's the rule for that?
Conservation of atoms/mass
Salmon swim upstream to spawn eggs, die, and their babies dash to sea—years later, they return to do it all—what loop keeps the river full of fish?
The life cycle
What is inside the nucleus of a cell.
Chromosomes
Model with Punnett squares how pea plant height varies due to dominant/recessive traits.
Genetic variation
A model that describes gravity's role in elliptical orbits within the solar system.
Build a drawing of curvy paths planets take—how does gravity make them dance around the sun?
Motion in the solar system.
The average kinetic energy of a substance.
Temperature
Deep dirt dwellers turn plant nitrogen into harmless air gas again, ready for lightning or roots—what loop feeds farms without running out?
The nitrogen cycle
Explain how a mutation in a chromosome affects protein production and organism function.
Traits
what can explain what happens when genetic factors (like breed) and environmental ones (like sunlight) influence this in organisms?
Growth
Events like dinosaur extinction are dated using fossils and these formations.
Rock layers.
When you burn a log in a campfire, it turns to gray ash and smoke while giving off heat and light—what kind of lasting switch is this?
Chemcial Change