Digestive System
This organ is where digestion of food begins
The mouth
Sound needs this to travel from one place to another.
A medium
What instrument do scientists use to see cells?
A microscope
What energy store does a moving car have?
Kinetic energy
AGSOEHPSUO
OESOPHAGUS
The tube that carries food from the mouth to the stomach.
The oesophagus
What do we call the number of vibrations per second?
Frequency
Name the jelly-like substance that fills a cell.
Cytoplasm
Name the energy stored in food and fuel.
Chemical energy
HSYOTNSISTHEP
PHOTOSYNTHESIS
The organ that produces acid to break down food and kill bacteria.
The stomach
The unit used to measure the loudness of sound.
Decibels (dB)
This organelle is known as the powerhouse of the cell.
The mitochondria
What law states that energy cannot be created or destroyed?
The Law of Conservation of Energy
IOATNRIBV
VIBRATION
This is where most nutrients are absorbed into the bloodstream.
The small intestine
What happens to the speed of sound as it moves from air into water?
It increases / gets faster
Name one structure found in a plant cell but NOT in an animal cell.
Cell wall / Chloroplast / Vacuole (any one)
A ball held at the top of a ramp has this type of energy.
Gravitational potential energy
IOMCHDANRITON
MITOCHONDRIA
Name the enzyme found in saliva that breaks down starch.
Amylase
A dolphin uses this technique to locate objects underwater using sound waves.
Echolocation
Give one adaptation of the red blood cell
Concave shape/no nucleus
What is the useful energy output of a light bulb, and what is the wasted energy?
Useful — light energy; Wasted — heat energy
YGENER
ENERGY