Body
What systems holds your body together?
Skeletal and muscular.
what is matter?
Anything with mass and takes up space.
What is a force?
A push or a pull on an object.
What is the only form of energy humans can see?
Light energy.
What is an example of a physical change?
Ice to water and many more.
How many systems are there?
5
What are the three types of matter that we learned?
Solid, liquid, and gas.
What's an internal force?
Forces acting on a structure on the inside.
What is the energy you use on a device?
Electrical energy.
What is an example of a chemical change?
When a car rusts and many more.
What is it called when your body is going through changes?
Puberty.
What are atoms?
Tiny particles that make everything.
What is an external force?
Forces acting on a structure on the outside.
How many types of energy are there?
10.
What is the difference between physical and chemical changes?
In a chemical change, a new substance is made, like when you burn a candle. In a physical change, no new substance is made, like when water turns to ice.
How many teeth do you have?
32
Which state of matter has a definite volume but no definite shape?
Liquid.
Name 5 forces.
Snow, rain, people walking, ice, things pushing, and many more.
What is heat energy?
The energy an object has because of the movement of its molecules, the faster the molecules go the hotter the object is.
Is frying a egg a chemical or physical change?
Chemical.
Name 5 systems that we learned.
Digestive, skeletal, muscular, respiratory, and the nervous system.
How is the amount of mass usually measured?
By grams or kilograms.
How is force measured?
By Newtons.
What is mechanical energy?
Energy that an object has because of its motion and its position.
What are the signs that a chemical change has happend?
Change in colour, bubbles forming, change in temperature, and the change of shape.