Grade 5 round 2

Which layer of the Sun is VISIBLE from Earth? A) Core B) Corona C) Photosphere

1. Which of the following changes is NOT reversible? A) Ice melting B) Water freezing C) Bread baking

If a solid object is heated enough, it can turn into: a) Only a liquid b) Only a gas c) First liquid, then gas

Which planet rotates sideways, almost lying on its side? a) Earth b) Jupiter c) Uranus

Which of these best explains why solids keep their shape? a) They hate moving b) Their particles are close and don't move much c) They have less gravity

Which Muslim inventor’s idea is closest to a modern security camera? a) Abbas Ibn Firnas b) Al-Jazari c) Ibn Al-Haytham

Which material conducts heat the slowest? A) Metal spoon B) Plastic ruler C) Copper wire

If you compress gas inside a balloon by squeezing it, what happens to its mass? a) Increases b) Decreases c) Stays the same

Bees collect nectar but also help flowers reproduce. This is an example of: A) Parasitism B) Competition C) Mutualism

What causes night and day on Earth? A) Earth revolving around the sun B) Earth rotating on its axis C) The moon blocking sunlight

Which of the following best describes a food web? a) A single path of energy flow b) A group of animals competing c) A network of connected food chains

Two students argue: Ali: “Gas has no mass because I can’t feel it.” Mona: “Gas does have mass because balloons get heavier when filled.”

“A student put a block of ice in the Sun. After 10 minutes it turned into water, and then disappeared. What two changes have happened?” A) Physical then chemical B) Physical then physical C) Chemical then chemical

Which fun fact is true? a) Venus has 3 hearts b) Saturn rains diamonds c) A tree can produce oxygen for 1 person only

If Saturn lost its rings, what would change the most? a) Its gravity b) Its appearance c) Its temperature

Which planet is known as the “Morning Star” and “Evening Star”? A) Mars B) Venus C) Saturn

Which material will float on water AND keep its shape if squeezed? A) Rock B) Sponge C) Plastic bottle

Which of Al-Jazari's inventions is similar to modern robots? A) Flying machine B) Water clock that pours drinks C) Glass lens

Which animal is BOTH a predator and prey? a) Lion b) Rabbit c) Snake

Salt is mixed into water and seems to disappear. What kind of mixture is this? A) Suspension B) Solution C) Gas mixture

If Earth suddenly stopped rotating, what would happen to day and night? a) They would switch very fast b) Day and night would stop — one side always day, one side always night c) Days would be longer

Which Qur’an verse describes the origin of life from water? a) وَجَعَلْنَا مِنَ الْمَاءِ كُلَّ شَيْءٍ حَيٍّ b) إِنَّا لَمُوسِعُونَ c) أَنْزَلْنَا الْحَدِيدَ

A wooden log is cut into 10 smaller pieces. What happens to its total mass? A) Increases B) Decreases C) Stays the same

Which of the following is both a consumer and a predator? A) Grass B) Mushroom C) Owl

If all predators disappear from an ecosystem, what will MOST LIKELY happen first? A) Plants will disappear B) Prey animals will overpopulate C) Sunlight will increase

If trees in an ecosystem suddenly stopped producing oxygen, which of the following would collapse first?” A) Decomposers B) Consumers C) Producers

Why doesn’t the Moon produce its own light? A) It is too small B) It is made of cheese C) It only reflects sunlight

Which planet would float if put in water because it is mostly made of gas? a) Mercury b) Jupiter c) Saturn

Which material would take the most space but have the least mass? a) A solid brick b) A cup of water c) A balloon full of air

Al-Jazari made machines that served drinks automatically. What modern invention was inspired by this? a) Elevators b) Vending machines c) Airplanes

Which is the BEST reason decomposers are called “Nature’s Recyclers”? A) They are green B) They eat trash and turn it into nutrients C) They make food chains longer