Complete stretch explore exercises

Author: Jestavo1

Sprint-2/4-stretch-explore/chrome.md

@@ -13,3 +13,6 @@ Now try invoking the function `prompt` with a string input of `"What is your nam
 
 What effect does calling the `prompt` function have?
 What is the return value of `prompt`?
+Calling the alert function displays a pop-up message to the user.
+
+Calling the prompt function asks the user for information. The return value of prompt is the information the user entered.

Sprint-2/4-stretch-explore/objects.md

@@ -9,7 +9,9 @@ What output do you get?
 Now enter just `console` in the Console, what output do you get back?
 
 Try also entering `typeof console`
+The console stores an object containing functions and other properties used for interacting with the console.
 
+The syntax console.log or console.assert accesses a function that belongs to the console object. The . means access a property or function that belongs to an object.
 Answer the following questions:
 
 What does `console` store?