diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..afce3d8c1d 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -59,6 +59,24 @@
 
 <script>
 
+function playSound(e) {
+  const audio = document.querySelector(`audio[data-key="${e.keyCode}"`);
+  const key = document.querySelector(`.key[data-key="${e.keyCode}"`);
+  if (!audio) return;
+  audio.currentTime = 0; // Rewind to start
+  audio.play();
+  key.classList.add('playing');
+}
+
+function removeTransition(e) {
+  if (e.propertyName !== 'transform') return;
+  this.classList.remove('playing');
+}
+
+const keys = document.querySelectorAll('.key');
+keys.forEach(key => key.addEventListener('transitionend', removeTransition));
+window.addEventListener('keydown', playSound);
+
 </script>
 
 
diff --git a/02 - JS and CSS Clock/index-START.html b/02 - JS and CSS Clock/index-START.html
index 2712384201..f1c254e74a 100644
--- a/02 - JS and CSS Clock/index-START.html	
+++ b/02 - JS and CSS Clock/index-START.html	
@@ -61,12 +61,38 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin: 100%;
+      transform: rotate(90deg);
+      transition: all 0.05s;
+      transition-timing-function: cubic-bezier(0.1,2.7,.58,1);
     }
 
   </style>
 
   <script>
 
+  const secondHand = document.querySelector('.second-hand');
+  const minuteHand = document.querySelector('.min-hand');
+  const hourHand = document.querySelector('.hour-hand');
+
+  function setDate() {
+    const now = new Date();
+    const seconds = now.getSeconds();
+    const minutes = now.getMinutes();
+    const hour = now.getHours();
+
+    const secondsDegrees = ((seconds/60) * 360) + 90;
+    secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
+
+    const minutesDegrees = ((minutes/60) * 360) + 90;
+    minuteHand.style.transform = `rotate(${minutesDegrees}deg)`;
+
+    const hoursDegrees = ((hour/12) * 360) + 90;
+    hourHand.style.transform = `rotate(${hoursDegrees}deg)`;
+
+  }
+
+  setInterval(setDate, 1000);
 
   </script>
 </body>
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
index ca2b59d077..877b5122eb 100644
--- a/03 - CSS Variables/index-START.html	
+++ b/03 - CSS Variables/index-START.html	
@@ -21,7 +21,21 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+  :root {
+    --base: #ffc600;
+    --spacing: 10px;
+    --blur: 10px;
+  }
 
+  img {
+    padding: var(--spacing);
+    background: var(--base);
+    filter: blur(var(--blur));
+  }
+
+  .h1 {
+    color: var(--base);
+  }
     /*
       misc styles, nothing to do with CSS variables
     */
@@ -48,6 +62,17 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+
+      const inputs = document.querySelectorAll('.controls input');
+
+      function handleUpdate() {
+        const suffix = this.dataset.sizing || '';
+        document.documentElement.style.setProperty(`--${this.name}`, this.value + suffix);
+      }
+
+      inputs.forEach(input => input.addEventListener('change', handleUpdate));
+      inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));
+
   </script>
 
 </body>
diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index eec0ffc31d..703a930894 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -31,29 +31,55 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const fifteen = inventors.filter(inventor => inventor.year >= 1500 && inventor.year < 1600)
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors' first and last names
+    const names = inventors.map(inventor => `${inventor.first}  ${inventor.last}`)
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    const sorted = inventors.sort((a, b) => a.year > b.year ? 1 : -1)
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?
+    const totalYears = inventors.reduce((total, inventor) => {
+      return total + (inventor.passed - inventor.year)
+    }, 0)
 
     // 5. Sort the inventors by years lived
+    const oldest = inventors.sort((a,b) => {
+      const lastGuy = a.passed - a.year;
+      const nextGuy = b.passed - b.year;
+      return lastGuy > nextGuy ? -1 : 1;
+    })
 
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
 
-
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    const alpha = people.sort((a, b) => {
+      const [alast, afirst] = a.split(', ')
+      const [blast, bfirst] = b.split(', ')
+
+      return alast > blast ? 1 : -1;
+    })
+
+    console.log(alpha)
 
     // 8. Reduce Exercise
     // Sum up the instances of each of these
     const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
+    const tally = data.reduce(function(obj, item) {
+      if (!obj[item]) {
+        obj[item]= 0;
+      }
+      obj[item]++
 
+      return obj;
+    }, {})
+    console.log(tally);
   </script>
 </body>
 </html>
diff --git a/05 - Flex Panel Gallery/index-START.html b/05 - Flex Panel Gallery/index-START.html
index e1d643ad5c..ad5a34306d 100644
--- a/05 - Flex Panel Gallery/index-START.html	
+++ b/05 - Flex Panel Gallery/index-START.html	
@@ -24,6 +24,7 @@
     .panels {
       min-height:100vh;
       overflow: hidden;
+      display: flex;
     }
 
     .panel {
@@ -41,6 +42,11 @@
       font-size: 20px;
       background-size:cover;
       background-position:center;
+      flex: 1;
+      justify-content: center;
+      align-items: center;
+      display: flex;
+      flex-direction: column;
     }
 
 
@@ -54,6 +60,22 @@
       margin:0;
       width: 100%;
       transition:transform 0.5s;
+      flex: 1 0 auto;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+
+    }
+
+    .panel > *:first-child {
+      transform: translateY(-100%);
+    }
+    .panel > *:last-child {
+      transform: translateY(100%);
+    }
+    .panel.open-active > *:first-child,
+    .panel.open-active > *:last-child {
+      transform: translateY(0);
     }
 
     .panel p {
@@ -68,6 +90,7 @@
 
     .panel.open {
       font-size:40px;
+      flex: 5;
     }
 
     .cta {
@@ -107,7 +130,20 @@
   </div>
 
   <script>
+    const panels = document.querySelectorAll('.panel');
+
+    function toggleOpen() {
+      this.classList.toggle('open')
+    }
+
+    function toggleActive(e) {
+      if (e.propertyName.includes('flex')) {
+        this.classList.toggle('open-active')
+      }
+    }
 
+    panels.forEach(panel => panel.addEventListener('click', toggleOpen));
+    panels.forEach(panel => panel.addEventListener('transitionend', toggleActive));
   </script>
 
 
diff --git a/06 - Type Ahead/index-START.html b/06 - Type Ahead/index-START.html
index 1436886918..509627ffd8 100644
--- a/06 - Type Ahead/index-START.html	
+++ b/06 - Type Ahead/index-START.html	
@@ -17,6 +17,43 @@
 <script>
 const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
 
+const cities = [];
+
+fetch(endpoint)
+  .then(blob => blob.json())
+  .then(data => cities.push(...data));
+
+function findMatches(wordToMatch, cities) {
+  return cities.filter(city => {
+    const regex = new RegExp(wordToMatch, 'gi');
+    return city.city.match(regex) || city.state.match(regex)
+  })
+}
+
+function displayMatches() {
+  const matchArray = findMatches(this.value, cities);
+  const html = matchArray.map(city => {
+    const regex = new RegExp(this.value, 'gi');
+    const cityName = city.city.replace(regex, `<span class="hl">${this.value}</span>`);
+    const stateName = city.state.replace(regex, `<span class="hl">${this.value}</span>`);
+    return `
+      <li>
+        <span class="name">${cityName}, ${stateName}</span>
+        <span class="population">${city.population}</span>
+      </li>
+    `;
+  }).join('')
+
+  suggestions.innerHTML = html
+}
+
+const searchInput = document.querySelector('.search');
+const suggestions = document.querySelector('.suggestions');
+
+searchInput.addEventListener('change', displayMatches)
+searchInput.addEventListener('keyup', displayMatches)
+
+
 </script>
   </body>
 </html>
diff --git a/07 - Array Cardio Day 2/index-START.html b/07 - Array Cardio Day 2/index-START.html
index 969566ff78..798de4995f 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -26,15 +26,33 @@
 
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19 or older?
+    const isAdult = people.some(person => {
+      const currentYear = (new Date()).getFullYear();
+      return (currentYear - person.year >= 19);
+    });
+
     // Array.prototype.every() // is everyone 19 or older?
+    const allAdult = people.every(person => {
+      const currentYear = (new Date()).getFullYear();
+      return (currentYear - person.year >= 19);
+    });
+
 
     // Array.prototype.find()
     // Find is like filter, but instead returns just the one you are looking for
     // find the comment with the ID of 823423
-
+    const ourComment = comments.find(comment => comment.id === 823423)
+    
     // Array.prototype.findIndex()
+    // 
+    const index = comments.findIndex(comment => comment.id === 823423)
     // Find the comment with this ID
     // delete the comment with the ID of 823423
+    const newComments = [
+      ...comments.slice(0, index),
+      ...comments.slice(index + 1)
+    ]
+    console.table(newComments)
 
   </script>
 </body>