Problem: Article: The most important step in the process of tapping a tree for maple is finding just the right tree. Look for a maple tree that is at least 12 inches in diameter and has a lot of direct sunlight. Maple trees that give the most sap are of the sugar or black variety. Red and silver maple trees will also provide sap, but not as much as the other two species. One overlooked tree for sugary sap is the Black Walnut. Avoid unhealthy trees that have been damaged in the past. They will not provide as much sap as a big, strong, healthy tree. You can tap a single tree multiple times if it is large and healthy enough. For a tree 12-20 inches in diameter, a single tap is all that can be used. For a tree 21-27 inches wide, you can use up to two taps. A tree can have three taps if it is wider than 28 inches across. Trees with a larger crown - all the branches and leaves - typically give more sap than trees with a smaller crown.
Summary: Find a maple tree.

INPUT ARTICLE: Article: Think you've found the perfect formula to make your girlfriend feel special? Then think again. If you want to keep making her feel special, then you have to keep mixing things up and make your relationship feel fresh. Even if you've found the perfect date night scenario, you have to keep trying new combinations so your girlfriend doesn't feel like you're getting bored and complacent. Here are some great ways to keep things spontaneous: Plan a surprise trip or date when she doesn't expect it. Write her a sweet love note on a random Tuesday. Serenade her in public. Send her a text message that makes her laugh in the middle of a stressful day. Don't be afraid to act like a little kid sometimes. If you feel like running around a park or jumping into the ocean, go for it! (As long as you're staying safe.) Though finding a routine that works for your relationship is great, you can also make your girlfriend feel special by continuing to find new activities that can define and reinvent your relationship. Here are some great things you can do together: Start a book club for two Take a dancing class Learn to cook one new recipe a month together Teach yourselves a foreign language Train for a half-marathon together Volunteer in your community together Another great way to make your girlfriend feel special is to check out some new places together. You don't have to have the budget of a sultan to explore something new together. You can start by checking out a new restaurant, and then work your way up to going to a museum you've both had your sights on, and then take weekend trips to other cities or even plan an exciting vacation to get out of your usual routines. Make an effort to travel together as much as you can and you'll see that your girlfriend feels special because you continue making an effort. Make a dream bucket list of places that the two of you want to go to. Cross them off together, one by one, even if it takes years! Another way to make your girlfriend feel special is to always make her feel like she's a priority. That means that you should always make time for date nights, for conversation, and just for decompressing together. Once you stop making time for each other, the love and fun will stop, too. If both or one of you is having a really busy week or month, talk about making that sacred couple time in advance. When you are together, give her your full attention. Don't check your phone, zone out, or invite other friends to join you if you're really trying to connect with your girl. Don't take her for granted and think that things are going great in your relationship so you don't have to keep trying so hard. A relationship is never either "great" or "not great," and you need to always keep working on it, even if you feel like everything is perfect. Always remember to compliment your girlfriend, to tell her how special she is, and just to keep the love going no matter what. When you see her, notice her appearance and compliment her. Don't make her think you don't pay attention to her looks any more. Continue to check in and ask her about how her day, her job, her classes, etc, are going. Don't just assume that she'll bring it up if something is bothering her. Check in about her feelings. Make sure she's happy and talk about it if she's not. If you want to make your girlfriend feel special, then you have to keep things romantic, whether you've been together for five months or five years. Dress up for date nights. Always be a gentleman. Light some candles when you're cooking dinner for her. Keep the chase going -- play hard to get sometimes. Don't just settle in to your relationship once it's obvious that you both like each other, but work to keep her hooked and make her do the same. Keep the romance alive by trying new things, being adventurous together, and always having something to look forward to as a couple. If there's something romantic or sexy on the horizon, then your girlfriend will always feel special in her relationship, and you will always feel satisfied.

SUMMARY: Stay spontaneous. Find something new to do together. Explore new places. Always make time for each other. Never take her for granted. Keep the romance alive.

In one sentence, describe what the following article is about: For things that grow, whether in height or weight, you can measure the rate of growth by finding the change in whatever quality you wish to measure, divided by the time. This formula can be expressed mathematically as: rate=ht{\displaystyle { ext{rate}}={
rac {\Delta h}{\Delta t}}} or wt{\displaystyle {
rac {\Delta w}{\Delta t}}} In these two examples, h{\displaystyle h} represents the height and w{\displaystyle w} represents weight. In both of these, t{\displaystyle t} is for the elapsed time. Some plants, like the Asian bamboo, grow very fast, with visible differences taking place within hours. For measuring something like the growth rate of a child, changes may not take place for months or a year or more. You need to select a time period that is relevant for what you are measuring. Suppose an elementary class plants bean seeds and begins measuring their growth as soon as the first sprout appears. A reasonable time measurement might be about a month, measured in days. Scientists raising an orphaned baby elephant wanted to measure its growth rate over the first 90 days of its life. Measuring a growth rate requires that you set some starting point and measure the size at that time. For the example of the students' bean plants, they chose the starting point to be the day that the first sprout appeared. The height at the point is set at 0 cm. For the baby elephant, veterinarians measured the elephant's weight the day it was born. Its initial weight on that day was 200 pounds. After the time elapses for your study, measure the height or weight of the object whose growth you are studying. For the bean plants, the average height of the students' plants on the 30th day was 24 inches tall. Because the plants began at a height of 0, the amount of growth was 24 inches. For the elephant, after the 90 day study period, the veterinarians measured its weight to be 400 pounds. Enter the data that you measured into the formula and perform the calculations to find the growth rate. For the students' bean example, the calculation will look like this: rate=24inches30days=0.8inchesday{\displaystyle { ext{rate}}={
rac {24{ ext{ inches}}}{30{ ext{ days}}}}=0.8{
rac { ext{ inches}}{ ext{ day}}}} For the elephant's growth rate, you must calculate the amount of change in the weight in the numerator as part of the calculation: rate=400200pounds90days{\displaystyle { ext{rate}}={
rac {400-200{ ext{ pounds}}}{90{ ext{ days}}}}} rate=200pounds90days{\displaystyle { ext{rate}}={
rac {200{ ext{ pounds}}}{90{ ext{ days}}}}} rate=2.22poundsday{\displaystyle { ext{rate}}=2.22{
rac { ext{pounds}}{ ext{day}}}}
Summary:
Understand the formula for measuring average growth rates. Decide how long you wish to measure the growth rate. Calculate the starting size. Measure the ending height or weight. Use the growth rate formula for either height or weight.