Home Orbital

Mortgages Explained

How people buy houses they can't afford (yet).

  • Ages 5–8 and 9+
  • About 5 minutes
  • Free, no account needed
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What this planet teaches

What Is a Mortgage?

A mortgage is a loan specifically for buying a home. It's probably the biggest financial commitment most people ever make.


How it works:

1. You save up a down payment (usually 10-20% of the home price)

2. A bank lends you the rest (the mortgage)

3. You pay it back monthly over 15-30 years

4. The house is collateral — if you stop paying, the bank can take it


Example: A $300,000 house:

  • Down payment: $60,000 (20%)
  • Mortgage: $240,000
  • Monthly payment at 6% interest over 30 years: ~$1,440/month
  • Total paid over 30 years: ~$518,000 (yes, you pay more than double!)

  • That's amortization — each monthly payment is split between principal (the actual loan) and interest. Early on, most of your payment is interest. Over time, more goes to principal.


    Why it's still worth it: While you're paying the mortgage, the house usually increases in value. A $300,000 house might be worth $500,000 in 15 years. Plus, you need somewhere to live anyway — would you rather pay rent (which builds nothing) or a mortgage (which builds ownership)?

    How a planet works

    Go through a short lesson with the KidCash mascot, three or four cards with a question to tap and reveal on each set. Last comes a three-question checkpoint: answer two correctly to clear the planet and earn the Homeowner Scholar badge. Lesson progress stays in this browser; when a kid signs in, planet badges and any Family-plan badge rewards save to their KidCash profile.

    Land on Home Orbital to try the lesson cards and checkpoint. This planet’s mini game is arriving soon.

    Questions this planet covers

    1. Why do most people use a mortgage to buy a house?
      • Because houses are free
      • Because houses cost too much to pay all at once
      • Because banks force them to
      • Because they don't want to own a house
    2. What is a mortgage?
      • A kind of piggy bank
      • A gift from the bank that you never repay
      • A big, long loan for buying a house
      • A tax on toys
    3. What happens when a family pays off their whole mortgage?
      • Their payments get bigger
      • They own the house completely
      • They have to move out
      • The bank keeps the house
    Mortgages Explained: Free Money Lesson for Kids — KidCash App