Question | Answer |
What instrument would you use to measure an irregularly shaped solid? | graduated cylinder |
What is an inference? | a guess or prediction based on data |
What do we call an orderly process used to solve problems and investigate the world? | scientific method |
What is an observation | something you use five senses for |
Compared to water, ice cubes are ______ dense. | less dense |
What tools do you need to find the density of a plastic block? | ruler and triple beam balance |
If something sinks to the bottom of a beaker of water, than the density must be | more than 1/gcm3 |
Give an 2 examples of a physical change | melting ice, burning wood |
What charge does a proton have? | positive |
What are the properties of the shape and volume of a gas? | No definite shape or volume |
What are the properties of the shape of a liquid? | no definite shape |
What is the property of the shape of a solid? | a definite shape |
What elements are solid and shiny at room temparature? | metals |
Most of the elements in the periodic table are... | metals |
Give a chemical change of water? | changing to hydrogen peroxide |
When LIKE poles are brought close together, what will happen to the magnets? | they will repel each other |
The ends of magnets are called ________. | poles |
Electricity is the movement of _______. | electrons |
The path that transfers energy is called a ______. | circuit |
Wire is often covered in plastic to prevent electric shock. Why? | Plastic does not conduct electricity |
An electron has a _________ charge. | negative |
Most energy in the US is from __________. | fossil fuels |
What formed fossil fuels? | remains of dead plants and animals from millions |
Name a nonrenewable resource. | natural gas |
If two OPPOSITE poles are put near each other, the magnets will ______. | attract |
What types of objects are attracted to magnets? | metals |
What is closely related to magnetism? | Electricity |