Living Things
All bacteria are harmful. True or false?
False
All plants reproduce by seeds. True or false?
False.
Magnetism can only pass through non-magnetic materials. True or false?
True.
A butterfly is a pest. True or false?
False. It is a pest only as a caterpillar as it feeds on leaves. Adult butterfly helps plants to reproduce.
We use a weighing scale to measure the length of an object. True or false?
False. Length is measured by a ruler.
Only animals can respond to changes. True or false?
False. Plants, fungi and bacteria can respond to changes too.
What are the conditions for seeds to germinate/grow?
Water, oxygen and warmth (WOW).
Stroking the magnetic material many times in the _____ _____ using the same pole produces a temporary magnet.
Same direction.
Which 2 youngs of animals do not resemble their parents?
Butterfly, mosquito, mealworm beetle and frog.
(any 2)
To find out if mould grows well on bread in a cold or warm place. How do we do to the 2 pieces of bread in the experiment?
Place a piece of bread in cold place and another piece of bread in a warm place.
Name 2 water mammals.
Whale, dolphin, seal, walrus (any 2).
Name 2 ways the roots help the plant?
The roots absorb water and anchor the plant to the ground.
Which 2 ways can an electromagnet be made stronger?
Increase the number of coils of wire around the magnetic object and increase the number of batteries.
How does laying many eggs each time help animals survive?
This ensures that some eggs will hatch and develop into adults.
To find out if mould grows well on bread in a cold or warm place. Which 2 conditions must be kept the same?
The size, type or brand of bread (any 2).
Which 2 groups of living things are warm blooded (constant body temperature)?
Mammals and birds.
Which 2 conditions are needed for plants to make food.
Water, sunlight and carbon dioxide (any 2).
How do migratory birds find their way?
They detect magnetic field of the earth.
How does removing stagnant water get rid of moquito?
Mosquito cannot breed/lay eggs without stagnant water.
To find out if a smaller of bigger marble rolls down a slope faster. What is the changed variable?
The size of marbles.
Name 3 common characteristics of birds.
Birds have beaks, feathers, breathe through lungs and lay eggs. (not all birds can fly)
How does the seedling get food to grow?
What do we observe to determine the magnetic strength of a magnet?
1. By counting the number of magnetic objects the magnet can attract
2. By measuring the distance the magnet is able to attract the magnetic objects.
Which stages of the lifecycle of mosquito is the easiest to kill it? Why?
Egg/larva/pupa stages. They cannot fly yet so it is easiest to kill them.
To find out if the size of marbles affects the time it rolls down a slope, how do we ensure a fair test?
Only changed the size of marbles while keeping other variables constant.