Consent Preferences

We value your privacy

We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By clicking "Accept All", you consent to our use of cookies.

Customize Consent Preferences

We use cookies to help you navigate efficiently and perform certain functions. You will find detailed information about all cookies under each consent category below.

The cookies that are categorized as "Necessary" are stored on your browser as they are essential for enabling the basic functionalities of the site. ... 

Always Active

Necessary cookies are required to enable the basic features of this site, such as providing secure log-in or adjusting your consent preferences. These cookies do not store any personally identifiable data.

  • Cookie
    wt_consent
  • Duration
    1 year
  • Description
    Used for remembering users’ consent preferences to be respected on subsequent site visits. It does not collect or store personal information about visitors to the site.
  • Cookie
    wpEmojiSettingsSupports
  • Duration
    session
  • Description
    WordPress sets this cookie when a user interacts with emojis on a WordPress site. It helps determine if the user's browser can display emojis properly.

Functional cookies help perform certain functionalities like sharing the content of the website on social media platforms, collecting feedback, and other third-party features.

  • Cookie
    wp-wpml_current_language
  • Duration
    session
  • Description
    WordPress multilingual plugin sets this cookie to store the current language/language settings.

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics such as the number of visitors, bounce rate, traffic source, etc.

  • Cookie
    _ga
  • Duration
    1 year 1 month 4 days
  • Description
    Google Analytics sets this cookie to calculate visitor, session and campaign data and track site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognise unique visitors.
  • Cookie
    _ga_*
  • Duration
    1 year 1 month 4 days
  • Description
    Google Analytics sets this cookie to store and count page views.

Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.

No cookies to display.

Advertisement cookies are used to provide visitors with customized advertisements based on the pages you visited previously and to analyze the effectiveness of the ad campaigns.

No cookies to display.

Other cookies are those that are being identified and have not been classified into any category as yet.

No cookies to display.

Intranet

Tinta invisible

Objetivo: El objetivo de este experimento es ver lo que hemos escrito en un papel blanco cuando lo acercamos a una fuente de calor

  • Material de laboratorio

    Bastoncillo de algodón

    Libro blanco

    Vela

    Más ligero

  • Reactivos

    Leche

    Zumo de limón

    Bicarbonato sódico

    Agua

    Vinagre

    Azúcar

    Zumo de manzana

  • Preguntas

    ¿Qué tipo de reacción se produce cuando las letras aparecen en el papel?

    ¿Por qué cambia de color la pasta de bicarbonato?

    ¿Con qué zumo has obtenido mejores resultados?

    ¿Sería posible realizar este experimento con miel? ¿Y con vino?

Procedimiento

  • Cogemos un palito, lo mojamos en leche (o zumo de limón, vinagre, solución azucarada, zumo de manzana), y escribimos lo que queramos en el papel.
  • Deja que se seque.
  • Acércalo a una fuente de calor, en este caso una vela.
  • Observa cómo aparece todo lo que hemos escrito.
  • Otra forma: mezcla 60 g de bicarbonato sódico con 60 ml de agua. El resultado será una especie de pasta de bicarbonato sódico. Con esta pasta, escribe un mensaje en un trozo de papel. Luego, para hacer visible lo que hemos escrito, pinta el papel con zumo de uva utilizando un pincel.

Creemos un futuro más brillante

Únete a nuestro equipo para trabajar con investigadores de renombre, emprender proyectos innovadores y contribuir a avances científicos significativos.

Únete a nosotros!
Patronato:
Miembro de:
Acreditado con:
Con el apoyo de: