Sound
What is sound?
A form of energy we detect with our ears
What is respiration?
Breathing for energy
Why can't we drink most of the water on Earth?
Salt
What do roots do for a plant?
Anchor the plant to the soild and take in water and nutrients
What is electricity?
Energy from charged particles
What are rocks made of?
One or more minerals
What causes all sounds?
A vibration
What is digestion?
Breaking down food for nutrients
What provides the energy to make the water cycle happen?
The Sun
What do stems do for plants?
Support the leaves and flowers and transport water and nutrients throughout the plant
Which charged particles will attract and which charged particles will repel?
Negative and positive will attract.
Negative and negative or positive and positive will repel.
What does inorganic mean?
Does not come from living things
In waves
What carries food and oxygen to all parts of our bodies?
blood
What are the 3 main processes of the water cycle?
Evaporation, condensation, and precipitation
What are the 2 main types of roots?
Tap root
Fibrous root
What is a circuit?
A complete path for electrons to flow.
What is mineral streak?
The colour of a minerals powder
What causes a high pitch sound?
A faster vibration
Name three organs of the respiratory system.
Nose
mouth
trachia
bronchi
lungs
Diaphragm
What is transpiration
Evaporation from the leaves of plants
What are the 2 main types of stems?
Woody
Herbaceous
What is an open circuit?
A circuit that is not completely connected.
Name two minerals used in technology.
silicon
copper
gold
silver
Why do we see lightning before we hesr thunder?
Light travels faster than sound
Which organ of the digestive system absorbs most of the nutrients from food?
Small intestine
Where is most of the fresh water on Earth?
Frozen in the polar ice caps
How do animals help plants reproduce?
pollination
seed dispersal
If two lamps are wired in parallel and one light fails, what will happen to the other light?
nothing
Name two minerals we need in our bodies.
Calcium
iron
potassium
magnesium