Last time on..

​GELL

Goal: Students will be able to recall concepts learned from semester 1

Evidence: Quizizz responses

Ever since people had the ability to think, they've wondered, how does the world work?​

​

Science is one of the places where we go to try find the answer to that question.​

​

​The Purpose of Science

​

To start being a scientist, you need to have a cause/effect question you want to answer. Here are a few examples:

1. Does listening to music have an effect on exam scores?

2. Does the type of shoe have an effect on how fast you run?​

3. Does the type of food you eat effect how you feel?

4. ​Does the type of makeup have an effect on the amount of attention?

5. ​Does the type of filter have an effect on the number of insta likes?

​

​How do you Science?

​

• Before you start your experiment it is important to guess the outcome before you begin.

​

• When you finish the experiment you can compare what you thought was going to happen and learn from your predictions.

​

​How do you Science?

​

To create a fair test you must make sure the experiment has at least 3 components.

1. Independent Variable: This is the factor that the scientist changes to see if it has an effect on the dependent variable.

2. Dependent Variable: This is what the scientist measures. This way they know exactly how much the independent variable is impacting the test.

3. Control Variable: Only one variable can be changed at a time. Everything must be done exactly the same for a test to be considered fair.

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​How do you Science?

​

Once you have measured how much the dependent variable changes with the independent variable, then you can look at the numbers, identify patterns and learn from them.

​

​

​

​

​

​

​

​

​

​

​

​

​How do you Science?

​

​Speed: Measures how far an object travels and how long it takes arrive.

​

Acceleration: Measures​ increase or decrease in speed.

​

​

​

​Measurements

​

1. Isaac Newton discovers gravity.

2. The bigger the object is, the more gravity it has.

   ​

3. ​Planets are REALLY big objects so everything gets pulled towards them.

   ​

4. Objects in space act differently because they're not influenced by gravity.

​

​Motion and Forces

​

5. Newton concluded that whether an object is moves or not is directly related to the forces (gravity) acting on the object.

​

​Motion and Forces

​

When a force is applied to an object to make it move across a distance energy has been spent.

​

When you push a box to make it move, you have used energy in your body to make this happen. ​

​

​Energy is the ability to make change occur.

​

​

​

​Energy

​

• ​​All objects have the POTENTIAL to do work or cause change.

• ​Potential Energy is energy that COULD be used, but for now it does nothing so it is stored.

• ​The word "kinetic" comes from the Greek word "kinesis" which means motion.

• Kinetic energy can be passed from one object to another in the form of a collision.

• When stuff is warm, we call that thermal energy

• ​Objects are hot when their atoms are vibrating really fast.

• ​Thermal energy is a form of kinetic energy because of the motion from the vibrations.

​

​

• ​Stuff also explodes, we call that chemical/nuclear energy

• ​When bonds between atoms are broken or formed, energy is released. This is called a chemical reaction.

• ​We have seen stuff shine, we call that light energy

• ​The Electromagnetic Spectrum includes all kinds of light. The human eye can only see visible light

• ​We can also hear noises, we call this type of energy sound energy. It can also be called sonic energy.

• ​Sound is the energy things produce when they vibrate