States of Matter
Liquids have a fixed shape (True or False)
False
Which planet is closest to the Sun?
Mercury
Which layer do we live on?
Crust
Why do dandelion seeds travel easily in wind?
They are light and have parachute-like structures
What is a vertebrate?
An animal that has a backbone
Compare the movement of particles in a solid and a gas.
Solid particles vibrate in place; gas particles move freely and quickly
Which is the largest planet in the Solar System?
Jupiter
What comes out of a volcano during an eruption?
Lava, ash, and gas
Why do plants need insects like bees?
To help with pollination
Which vertebrates lay eggs and have dry scaly skin?
Reptiles
Which change of state occurs when a gas becomes a liquid?
Condensation
What is the correct order of planets from the Sun?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Which layer is found directly above the outer core?
Mantle
Name the male and female parts of a flower.
Male: stamen (anther, filament)
Female: carpel/pistil (stigma, style, ovary)
Name the five main groups of vertebrates.
Mammals, birds, fish, reptiles, amphibians
What happens to particles when a liquid freezes?
They lose energy, move more slowly, and become fixed in position
Which force keeps planets in orbit around the Sun?
Gravity
What causes earthquakes?
Movement of tectonic plates in the Earth’s crust releases energy, causing the ground to shake
What is fertilisation in plants?
When male cells (pollens) and female cells (ovules) join to form a seed
What type of skeleton do some invertebrates have?
Exoskeleton (external skeleton)
What happens to particle movement when the temperature increases?
Particles gain energy and move faster.
Explain the difference between rotation and revolution.
Rotation is spinning on an axis (causes day and night); revolution is moving around the Sun (causes a year)
What is the difference between magma and lava?
Magma is molten rock found beneath the Earth’s surface, while lava is molten rock that has erupted and reached the Earth’s surface.
Explain how a flower is adapted for insect pollination.
Bright petals, nectar, scent, and sticky pollen to attract insects
Explain why a bat is classified as a mammal even though it can fly.
A bat is a mammal because it has fur, gives birth to live young, and feeds milk to its babies, even though it can fly like a bird.