A _________ lens makes objects look larger and farther away.
convex
What is this body system called?
the respiratory system
Potassium sulfate is a white solid. It dissolves to give a colourless solution. The boiling point of the soltuion is 107°C. What happens when a liquid boils?
Once the solution reaches its boiling point the liquid will turn to gas.
Orange juice is stored in plastic bottles. Plastic is insoluble in water. What does insoluble in water mean?
Plastic is impossible to dissolve (mix) in water.
Explain what happens to the light as it enters the glass block. What is this called?
As the light enters the block, it gets bent. It then travels in a straight line until it exits the block and bends again. This is called refraction.
Which moon is waning crescent?
H
What is one way to know that a chemcial reaction took place?
Gas (bubbles) is produced; there is a change in colour; there is a change in temperature.
What measuring apparatus can be used to measure the temperature?
thermometer
What is this body system called?
the circulatory system
What measuring apparatus can be used to measure the volume of a liquid accurately?
measuring cylinder
What measuring apparatus can be used to measure mass?
scale
A _____________ lens makes objects look smaller and closer.
concave
The unnatural process of changing liquid to gas is called ____________.
boiling
In order to see, where does the light inside our eyes need to meet?
At the focal point
The process of changing liquid to gas naturally is called ____________.
evaporation
Mike adds 1g of salt to 100cm3 of water. He stirs the mixture. It is a solution. What colour is the solution?
Clear
Why does Neptune have the longest orbit?
Because it is the furthest planet from the Sun.
Potassium sulfate is a white solid. It dissolves to give a colourless solution. The boiling point of the soltuion is 107°C. Calculate the difference between the boiling point of the solution and the boiling point of pure water.?
7°C
Mike adds 1g of sugar to 100cm3 of water. He stirs the mixture. What does he observe?
The sugar dissolves into the water to make a solution.
Which moon is waxing gibbous?
D
What is this body system called?
the reproductive system
The process of changing gas to liquid is called _________.
condensation
The process of changing liquid to solid is called ___________.
freezing
What measuring apparatus can be used to measure weight?
forcemeter