SUN & SHADOWS
This causes day and night.
Answer: Rotation
🧠 Explain: Earth spins on its axis once every 24 hours. That spinning causes day and night.
Light bouncing off a surface is called this.
✅ Answer: Reflection
🧠 Explain: Reflection happens with mirrors, water, and shiny objects.
What is a complete path for electricity?
✅ Answer: Circuit
🧠 Explain: Electricity needs a path to flow.
The variable you change.
✅ Answer: Independent
🧠 Explain: “I change I” — the independent variable is what you control.
Anything with mass and volume.
✅ Answer: Matter
🧠 Explain: If it takes up space and has mass, it’s matter.
At noon, shadows are usually this length.
✅ Answer: Short
🧠 Explain: The Sun is highest in the sky at noon, so shadows are shortest.
Light bending when it enters water is called this.
✅ Answer: Refraction
🧠 Explain: Light slows down and bends when it moves through different materials.
A circuit that works has to be this.
✅ Answer: Closed
🧠 Explain: Closed circuits allow electricity to flow.
The variable you measure.
✅ Answer: Dependent
🧠 Explain: It depends on what you changed.
Salt water looks the same throughout. What type of mixture is it?
✅ Answer: Homogeneous
🧠 Explain: Homogeneous mixtures are evenly mixed.
In the morning and evening, shadows are this.
✅ Answer: Long
🧠 Explain: When the Sun is low in the sky, shadows stretch out and become longer.
Why does a coin look closer in water?
✅ Answer: Refraction
🧠 Explain: Light bends as it leaves the water and tricks your eyes.
A broken circuit is this.
✅ Answer: Open
🧠 Explain: Open circuits stop electricity, so nothing works.
DAILY DOUBLE!!!!!!
What type of variable must stay the same?
✅ Answer: Controlled
🧠 Explain: Controlled variables make the test fair.
Trail mix is this type of mixture.
✅ Answer: Heterogeneous
🧠 Explain: You can see different parts.
Earth moving around the Sun is called this.
✅ Answer: Revolution
🧠 Explain: Revolution takes 365 days and causes the seasons.
Seeing the image of trees in a lake uses this.
✅ Answer: Reflection
🧠 Explain: Light reflects off the trees and then reflects off the water into your eyes.
Materials that allow electricity.
✅ Answer: Conductors
🧠 Explain: Metals are good conductors because electricity moves easily through them.
A student uses Force to throw a stone in water → The stone creates a splash The force is which variable?
✅ Answer: Independent
🧠 Explain: The force is what the student changes.
Mass ÷ volume equals this.
✅ Answer: Density
🧠 Explain: Density tells how tightly matter is packed.
More daylight in summer happens because of this.
✅ Answer: Tilt
🧠 Explain: Earth’s tilt causes different amounts of sunlight during the year.
What is the best texture for reflections to happen?
✅ Answer: Smooth
🧠 Explain: Smooth surfaces reflect light clearly. Rough surfaces scatter light.
Open switch = bulb does this.
✅ Answer: Off
🧠 Explain: No complete path means no electricity flow.
A student uses Force to throw a stone in water → The stone creates a splash. The Splash height is this variable.
✅ Answer: Dependent
🧠 Explain: The height depends on the force.
Least dense object does this.
✅ Answer: Floats
🧠 Explain: Lower density than the liquid = floating.