Some Science
For humans, walking on two legs is:
A - necessary
B - an artform
C - an instinct
D - a learned behavior
D - a learned behavior
Do magnets attract or repel magnetic metals?
Attract
Name one example of a producer, consumer, and decomposer?
Producers - plants and algae
Consumers - carnivores, herbivores, omnivores
Decomposers - bacteria, earthworms, fungi, termites
What is Mrs. Stone's favorite planet?
Earth
What is the source of a river and where do all rivers end?
The mountains (glaciers) and the ocean
What are three forms of water?
Solid, Liquid, Gas
What are the main steps of the water cycle?
Evaporation, condensation, precipitation
Name a material that can be recycled.
Plastic, glass, aluminum, paper
What do seeds need to germinate?
Water, oxygen, warmth (sometimes light, soil/paper towel)
At what time of the day would your shadow be the shortest?
How much matter is packed into a given area is called ________.
Density
What types of material will complete an electric circuit?
Metal (iron and steel)
What is the role of a decomposer in an ecosystem?
They break down dead organic matter, recycling essential nutrients back into the environment, which plants then absorb, supporting the growth of new life.
What does mass mean?
Weight, how heavy something is.
What powers solar energy?
Sun
How does the sun help the water cycle?
By providing heat for evaporation
What is the difference between a conductor and an insulator?
A conductor allows electricity (and often heat) to flow through it easily due to having many free electrons, while an insulator resists the flow of electricity and heat because its electrons are tightly bound.
Name three forces.
Push, pull, gravity
What are two ways you can identify a mammal?
Mammals are warm-blooded, vertebrate animals that have hair, breathe air and feed their babies milk. They give birth, they do not lay eggs.
How does the sun's gravity affect the earth?
The Sun's gravity is crucial for Earth's existence, holding it in orbit and preventing it from drifting away, while also influencing Earth's seasons, weather, climate, and other phenomena.
What are renewable energy sources and give two examples.
Sunlight, wind, water
What is the difference between a physical change and a chemical change?
A physical change alters the form or appearance of a substance (like shape, size, or state), but not its chemical composition, while a chemical change results in the formation of new substances with different chemical properties.
How does friction affect motion?
Friction always acts in the direction opposite to the motion, slowing down or stopping moving objects.
What does the arrow show in a food chain?
The transfer of energy
Why is the sun the brightest star?
It is only star in our solar system and therefore, the closest to Earth.