Which are the 5 senses.
sight, hearing, touch, smell and taste
Which are the steps in the plants life cycle?
germination, growth, pollination, fertilization, seed dispersal
Which are the 3 states of matter?
solid, liquid and gas
Is gravity a force?
yes
Why are leaves important?
Because they make the food
What is the process of a solid turning into liquid?
Melting
What is the melting point of water?
0°C
What is the unit of mass?
grams
When is a material a good conductor?
Electricity can pass through them.
What apparatus do we use to measure mass?
Scales or balance
How do muscles work?
They work in pairs, when is contracted the other one relaxes.
How long does it take to the Earth to make one complete rotation on its axis?
24 hs
How do we classify living things?
vertebrates and invertebrates, amphibians, reptiles, birds, fish, animals and plants, mammals
Is melting glass a reversible or irreversible change?
Reversible
What are food chains?
They represent feeding relationships.
Which is the function of the liver?
Make bile and help to detox our body
Name the process that changes water into vapour.
Evaporation
Why do we need gravity?
To stay on the ground.
Which are the 3 laws of motion?
Inertia, force and action-reaction.
Which are the 7 life processes?
nutrition, movement, growth, reproduction, respiration, excretion, sensitivity
What is the boiling point of water?
100°C
Name 5 measuring instruments.
measuring cylinder, ruler, sound level meter, forcemeter, balance
What is the unit of weight?
Newtons
How are shadows formed?
Light from a light source is blocked.
How do we call the poles of the magnet?
North and South
Can we survive 7 days without food?
Yes but not without water
Which are the separaring methods?
Evaporation, sieving, filtration, by hand, magnetism.
What is a solution?
A mixture of a soluble solid and a liquid.
Is copper a good conductor?
yes
Can an electrical circuit work without wires?
No
How does sound travel?
As waves, it can bend and it spread in all directions.
What is a reversible and an irreversible change?
If you can get back to its original form it is a reversible change.
How do plants fertilise?
When ovules and pollen get together.
Are all metals magnetic?
NO