diff --git a/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md b/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md
index 4192a49..93c6231 100644
--- a/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md	
+++ b/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md	
@@ -123,8 +123,8 @@
 - After the charged object is removed, the object will reutrn neutral. This is why this is a temporary way of charging an object.
 
 ### 2. Charging by Induction Permanently: Induced Charge Separation + Ground
-- Basically, after being touched by a charged object, the neutral object will have a temporary charge, then the ground removves some of the electrons in the object, and afterwards, the object stays positive.
-- If the object is removed before the ground, it goes by to neutral, the ground must be **removed first** inorder to permantely charge the object.
+- Basically, after being touched by a charged object, the neutral object will have a temporary charge, then the ground removes some of the electrons in the object, and afterwards, the object stays positive.
+- If the object is removed before the ground, it goes back to neutral, the ground must be **removed first** in order to permantely charge the object.
 
 ## Conductors and Insulators
 - A conductor is a type of material that allows electrons to flow easily throught it.
@@ -175,7 +175,7 @@
 - <img src="https://files.catbox.moe/hwymit.png" width="500">
 - <img src="https://files.catbox.moe/r68d9o.png" width="500">
 ### Mandatory Componenets
-1. **Energy Source**: `Releases energy` to provide power to other componenets that are connecter
+1. **Energy Source**: `Releases energy` to provide power to other componenets that are connected
     - Example Electrochemical cell, battery, electrical outlet...
 2. **Load**: `Converts` electrical energy into other form of energy.
     - Example: Light bulb, heater, fan, motor...
@@ -183,7 +183,7 @@
     - Example: Copper wire, gold wire, silver wire.
 
 ### Optional Items
-1. **Switch**: Turns the electric circuit ono or off **by cutting off the path**.
+1. **Switch**: Turns the electric circuit on or off **by cutting off the path**.
 2. **Measuring Device**: Measures the `electrical property` of the circuit.
 3. **Fuse**: `Safety device` to prevent further damage to other electrical components.
 
@@ -283,7 +283,7 @@
 - the `difference` in electrical potential `energy` when a charge moved between `2 points` in an electric circuit.
 - **Symbol** for **Voltage**: `V`.
 - **Unit** for **Voltage**: `Volt[V]`
-- **1V = 1J of enery per 1C of charge** (each coulomb of charge have 1J have energy).
+- **1V = 1J of energy per 1C of charge** (each coulomb of charge have 1J have energy).
 - The **voltage** is measured by a `voltmeter`.
     - It is connected `in parallel` to the item you want to measure, which means you `create a new path` for the voltmeter next to the item you want to measure.