Science revision Flashcards
What is the function of the small intestine?
To absorb digested food into the bloodstream
Main function of large intestine?
Absorb water from undigested food
Name one structural adaptation of a polar bear to survive in the cold arctic.
Closely-packed fur,a layer of blubber
What to do to ensure reliable results?
Repeat experiment 2-3 times and find average result
Name the five properties of a material
Opacity, strength, flexibility, buoyancy and waterproofness
What is the main function of a leaf?
To trap sunlight to make food for the plant.
What is the function of the cytoplasm
To allow substances to move around within the cell
Heat transfer is from?
Hot->cold
Function of stomata?
Perform gas exchange
Function of nucleus?
Controls activities of the cell and contains genetic information
Is littering a direct cause of global warming?
No.
What is a behavioral adaptation of the desert fox to allow it to survive in the hot desert habitat?
It burrows during the day when the temperature is higher and hunts at night when the temperature is lower.
What part produces sperm cells?
Testes
Does an animal cell have a cell wall
No,it has an irregular shape
Plant part that absorbs water?
Root/root hair
Two magnetic materials?
Steel, iron
why can i push a syringe full of air?
Air can be compressed
State an effect of deforestation
Many animals lose their habitat/Global warmiing increases.
Mr lim got into a car crash.He knocked his head and got a cut but his brain was fine.State the human system that protected his brain
skeletal system
Molly created a circuit,but the bulb did not light up.State two possible reasons why the bulb did not light up
1.The bulb had fused
2.the battery had depleted
