Cells
What is an organism?
A solid stays in its own _____ unless we cut it or shape it ourselves.
Light travels fastest when it's traveling through .......
a vacuum
What is a pure substance?
It is mad up only one type of element or one type of compound.
What is a mixture?
A mixture contains two or more different substances.
What is a nucleus?
It controls what the cell does.
What are all materials made of?
Particles
How many minutes for the Sun to reach the Earth
8.3 minutes
What is saturated?
a solution that won't dissolve anymore solute at that temperature.
When the water in a salt solution evaporates, salt crystals form. What is the process called?
Crystallisation
Where photosynthesis happens
Chloroplasts
Suggest two properties of a gas
What type of wave are both light waves and water waves?
Transverse wave
What is solute and solvent?
Solute is the solid being dissolved.
Solvent is the liquid it's dissolving into.
What weather tool is used to measure how hot or how cold something is?
Boiling Point
Air Pressure
Thermometer
Temperature
Thermometer
Please give an example of a unicellular organism.
Bacteria
The particles in _____ have lots of room and move around all over the place, all the time.
What type of reflection happens when light reflects off a shiny, smooth surface, like a mirror?
Specular reflection
What is a compound?
It is when two different elements join together.
Examples of natural resources include soil, water, metals, and fossil fuels.
True
False
True
Where does aerobic respiration happen in a cell?
Mitochondria
Which has greater forces of attraction between particles-a solid or a liquid?
Which way does light bend when it travels from air to glass?
Light bends towards the line of the normal
What compound does the formula H2SO4 represent?
sulfuric acid
Which is the top layer of soil?
topsoil
subsoil
bedrock
humus
humus