diff --git a/src/components/Question.js b/src/components/Question.js
index 483506fb..9fe4bc9e 100644
--- a/src/components/Question.js
+++ b/src/components/Question.js
@@ -1,9 +1,20 @@
-import React, { useState } from "react";
+import React, { useEffect, useState } from "react";
 
 function Question({ question, onAnswered }) {
   const [timeRemaining, setTimeRemaining] = useState(10);
 
-  // add useEffect code
+  useEffect(() => {
+    if (timeRemaining === 0) {
+      onAnswered(false);
+      setTimeRemaining(10);
+      return;
+    }
+    const timerID = setTimeout(() => {
+      setTimeRemaining(timeRemaining - 1);
+    }, 1000);
+
+    return () => clearTimeout(timerID);
+  }, [timeRemaining, onAnswered]);
 
   function handleAnswer(isCorrect) {
     setTimeRemaining(10);