Mass
What do we use to measure the mass of an object?
A scale.
What type of material is typically magnetic?
Metals (iron, cobalt, nickel)
What are the three physical states of matter?
Solid, liquid, and gas.
What does relative density tell us about an object?
Whether the object will sink or float in water.
What does solubility mean?
The ability of a substance to dissolve in water.
What is a conductor?
A material that allows heat or electricity to flow through it easily.
If a feather has a mass of 5 grams and a book has a mass of 200 grams, which one is heavier?
The book is heavier.
Name one object that a magnet can pick up.
A paper clip.
Give an example of a solid.
Ice or a rock.
Will a rubber duck sink or float in water? Why?
It will float because it is less dense than water.
Name a substance that dissolves well in water
Sugar.
Name a common conductor of electricity.
Copper.
How would you describe the mass of a marble compared to a bowling ball?
The marble has a much smaller mass than the bowling ball.
Why can a magnet not pick up a plastic toy?
Because plastic is not magnetic.
What happens to the shape of a liquid when it is poured into a different container?
It takes the shape of the container.
What happens to an object that is less dense than water?
It will float.
What happens when you try to dissolve sand in water?
Sand does not dissolve and settles at the bottom.
What is an insulator?
A material that does not conduct heat or electricity well.
What is the unit of measurement commonly used for mass?
Grams or kilograms.
How does magnetism help in everyday tools?
It allows for the use of magnetic materials in machines and tools, such as motors and refrigerators.
Name a gas that is present in the air.
Oxygen or nitrogen.
Give an example of an object that sinks in water.
A marble.
Why is knowing solubility important in cooking?
It helps in making solutions and understanding how ingredients mix.
Why do we use insulators to cover electrical wires?
To prevent electric shocks and protect against heat.
If an object has a mass of 0 kilograms, what can you conclude about it?
It means the object has no mass or it does not exist.
Describe what happens when two magnets are brought close together, with one being a north pole and the other a south pole.
They attract each other.
How can temperature change the physical state of water?
Heating water can turn it into steam (gas), and cooling it can turn it into ice (solid).
Explain how density affects the behavior of objects in the ocean.
Objects that are denser than seawater will sink, while less dense objects will float.
Describe a situation where solubility is important in a science experiment.
When creating a saltwater solution to study how salt dissolves and affects boiling point.
How does a metal pot demonstrate conduction when used on a stove?
The metal pot allows heat to transfer from the stove to the food inside quickly.