Planet Earth 1
Describe the layers of Earth.
Earth's crust, mantle, outer core and inner core
Draw particle arrangement of solid, liquid and gas.
Draw on whiteboard.
When Southern hemisphere is having summer, what is the season of Northern hemisphere?
Winter
What does the chemical change produce?
A new product
How to call the puzzle shapes of Earth's surface?
tectonic plates
What makes the volcano eruption?
pressure under the Earth's surface
Tell us boiling point, freezing point and melting point of water.
boiling point - 100 degree Celsius
Freezing and melting point - 0 degree Celsius
What is an axis?
An axis is an imaginary line that runs through North pole and South pole of Earth.
What is physical change? Explain with example.
A physical change is a change of shape, texture, size, colour and volume. Substances are not chemically combined. (e.g. freezing ice)
How are mountains formed.
Mountains are formed when tectonic plates smash / collide each other.
What is the thinnest layer of Earth?
Which layer of Earth creates magnetic field?
Earth's crust
Outer core
Identify solute, solvent and solution for salty water.
Salt (solute) + Water (solvent) = salty water (solution)
What is revolution? How long does it take? What does it cause?
Revolution is when the Earth orbits around the Sun taking 365 1/4 days ( 1 year) and it causes seasons of the year.
Describe three examples of reversible and irreversible change.
any three for each change
What is bowl or funnel shaped depression of an volcano?
crater
How to identify the movement of tectonic plates moving side by side, forward and and backward.
side by side - transform
forward - convergent
backward - divergent
Explain how particles in the liquid move and behave in the process of evaporation.
Draw a diagram.
Particles move quickly and separate further away to change into gas when temperature increased.
How does the Earth rotate?
What is it called. How long does it take it? What does it cause?
The Earth rotates on its axis tilting 23.5 degree. It is called rotation and it takes 24 hours (1 day). It causes day and night.
Why do we see the water droplets on grass in the morning without raining? What happened?
We see it because of condensation process.
What are good and bad things about volcano and earthquake? At least 2 each for bad and good point
Good things - form mountains
- give rock and good soil with nutrients
Bad things - Tsunami
- destroy buildings and threaten lives of living creatures
Label the parts of an earthquake.
seismic waves, epicentre, focus, fault and crust
Explain how particles in the liquid move and behave in the process of evaporation.
Draw a diagram.
Particles move quickly and separate further away to change into gas when temperature increased.
Draw on whiteboard.
Draw diagrams of rotation and revolution.
Label those.
Draw on whiteboard.
Draw the diagram to show changes of matter: melting, freezing, evaporation and condensation.
Draw on whiteboard.
Label the parts of volcano?
ash cloud, crater, main vent, side vent, magma chamber, lava and Earth's crust